Proper .htaccess Method to Redirect a Few Select Pages to use HTTPS, Returning all Others to HTTP?

I've looked through similar questions but not found the exact working solution I'm after.

We have a Joomla site that needs 2-3 specific pages to be forced to use https, while navigating away from these pages needs to return to http for all other pages. All pages 'can' come up with either http or https, but https causes some issues with a few plugins.

We have already setup a few things on the .htaccess file, but I don't know all the syntax to do what I'm after. We have mod_rewrite on, a rule that redirects http:// to http://www., and the default Joomla rules that do the SEF urls.

So our secure pages are usually: /section/category/secure-page, /othersection/othercategory/secure-page 2, etc.

HERE'S OUR ENTIRE HTACCESS AFTER IMPLEMENTING THE FIX (BUT GETTING ERROR):

##
# @version $Id: htaccess.txt 10492 2008-07-02 06:38:28Z ircmaxell $
# @package Joomla
# @copyright Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
# @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
# Joomla! is Free Software
##

#####################################################
#  READ THIS COMPLETELY IF YOU CHOOSE TO USE THIS FILE
#
# The line just below this section: 'Options +FollowSymLinks' may cause problems
# with some server configurations.  It is required for use of mod_rewrite, but may already
# be set by your server administrator in a way that dissallows changing it in
# your .htaccess file.  If using it causes your server to error out, comment it out (add # to
# beginning of line), reload your site in your browser and test your sef url's.  If they work,
# it has been set by your server administrator and you do not need it set here.
#
#####################################################

##  Can be commented out if causes errors, see notes above.
Options +FollowSymLinks

#
#  mod_rewrite in use

RewriteEngine On

########## Begin - Rewrite rules to block out some common exploits
## If you experience problems on your site block out the operations listed below
## This attempts to block the most common type of exploit `attempts` to Joomla!
#
# Block out any script trying to set a mosConfig value through the URL
RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|\%3D) [OR]
# Block out any script trying to base64_encode crap to send via URL
RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]
# Block out any script that includes a <script> tag in URL
RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%3E) [NC,OR]
# Block out any script trying to set a PHP GLOBALS variable via URL
RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
# Block out any script trying to modify a _REQUEST variable via URL
RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
# Send all blocked request to homepage with 403 F开发者_开发问答orbidden error!
RewriteRule ^(.*)$ index.php [F,L]
#
########## End - Rewrite rules to block out some common exploits


########## Begin - SSL Redirects (https/http)
#
RewriteRule %{HTTPS}  off
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cultivate-la-tickets$  [OR]
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cla-tickets-thankyou$  [OR]
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cla-tickets-decline$  [OR]
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cla-tickets-error$  [OR]
RewriteCond %{REQUEST_URI}  ^/how-to-help/donate/make-a-donation/$
RewriteRule (.*)  https://%{HTTP_HOST}/$1  [L]

RewriteRule %{HTTPS}  on
RewriteCond %{REQUEST_URI}  !^/news-events/cultivate-la/cultivate-la-tickets$
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cla-tickets-thankyou$
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cla-tickets-decline$
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cla-tickets-error$
RewriteCond %{REQUEST_URI}  ^/how-to-help/donate/make-a-donation/$
RewriteRule (.*)  http://%{HTTP_HOST}/$1  [L]
#
##########


########## Begin - Redirect http:// to http://www. AND /annual subdirectory to annual. subdomain
#
RewriteCond %{HTTP_HOST} ^domainname.org [NC]
RewriteRule ^(.*)$ http://www.domainname.org/$1 [L,R=301]

RedirectMatch 301 ^/annual/(.*)$ http://annual.domainname.org/$1
#
##########

#  Uncomment following line if your webserver's URL
#  is not directly related to physical file paths.
#  Update Your Joomla! Directory (just / for root)

# RewriteBase /


########## Begin - Joomla! core SEF Section
#
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !^/index.php
RewriteCond %{REQUEST_URI} (/|\.php|\.html|\.htm|\.feed|\.pdf|\.raw|/[^.]*)$  [NC]
RewriteRule (.*) index.php
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]
#
########## End - Joomla! core SEF Section



########## Begin - 301 Redirect short URL
#
Redirect 301 /clatickets https://www.domainname.org/news-events/cultivate-la/cultivate-la-tickets

note: I deleted my previous answer. it's my new answer:

##
# @version $Id: htaccess.txt 10492 2008-07-02 06:38:28Z ircmaxell $
# @package Joomla
# @copyright Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
# @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
# Joomla! is Free Software
##

#####################################################
#  READ THIS COMPLETELY IF YOU CHOOSE TO USE THIS FILE
#
# The line just below this section: 'Options +FollowSymLinks' may cause problems
# with some server configurations.  It is required for use of mod_rewrite, but may already
# be set by your server administrator in a way that dissallows changing it in
# your .htaccess file.  If using it causes your server to error out, comment it out (add # to
# beginning of line), reload your site in your browser and test your sef url's.  If they work,
# it has been set by your server administrator and you do not need it set here.
#
#####################################################

##  Can be commented out if causes errors, see notes above.
Options +FollowSymLinks

#
#  mod_rewrite in use

RewriteEngine On

########## Begin - Rewrite rules to block out some common exploits
## If you experience problems on your site block out the operations listed below
## This attempts to block the most common type of exploit `attempts` to Joomla!
#
# Block out any script trying to set a mosConfig value through the URL
RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|\%3D) [OR]
# Block out any script trying to base64_encode crap to send via URL
RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]
# Block out any script that includes a <script> tag in URL
RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%3E) [NC,OR]
# Block out any script trying to set a PHP GLOBALS variable via URL
RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
# Block out any script trying to modify a _REQUEST variable via URL
RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
# Send all blocked request to homepage with 403 Forbidden error!
RewriteRule ^(.*)$ index.php [F,L]
#
########## End - Rewrite rules to block out some common exploits


########## Begin - SSL Redirects (https/http)
#
RewriteRule %{HTTPS}  off
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cultivate-la-tickets$  [OR]
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cla-tickets-thankyou$  [OR]
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cla-tickets-decline$  [OR]
RewriteCond %{REQUEST_URI}  ^/news-events/cultivate-la/cla-tickets-error$  [OR]
RewriteCond %{REQUEST_URI}  ^/how-to-help/donate/make-a-donation/$
RewriteRule (.*)  https://%{HTTP_HOST}/$1  [L]

RewriteRule %{HTTPS}  on
RewriteCond %{REQUEST_URI}  !^/news-events/cultivate-la/cultivate-la-tickets$
RewriteCond %{REQUEST_URI}  !^/news-events/cultivate-la/cla-tickets-thankyou$
RewriteCond %{REQUEST_URI}  !^/news-events/cultivate-la/cla-tickets-decline$
RewriteCond %{REQUEST_URI}  !^/news-events/cultivate-la/cla-tickets-error$
RewriteCond %{REQUEST_URI}  !^/how-to-help/donate/make-a-donation/$
RewriteRule (.*)  http://%{HTTP_HOST}/$1  [L]
#
##########


########## Begin - Redirect http:// to http://www. AND /annual subdirectory to annual. subdomain
#
RewriteCond %{HTTP_HOST} ^domainname.org [NC]
RewriteRule ^(.*)$ http://www.domainname.org/$1 [L,R=301]

RedirectMatch 301 ^/annual/(.*)$ http://annual.domainname.org/$1
#
##########

#  Uncomment following line if your webserver's URL
#  is not directly related to physical file paths.
#  Update Your Joomla! Directory (just / for root)

# RewriteBase /


########## Begin - Joomla! core SEF Section
#
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !^/index.php
RewriteCond %{REQUEST_URI} (/|\.php|\.html|\.htm|\.feed|\.pdf|\.raw|/[^.]*)$  [NC]
RewriteRule (.*) index.php
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]
#
########## End - Joomla! core SEF Section



########## Begin - 301 Redirect short URL
#
Redirect 301 /clatickets https://www.domainname.org/news-events/cultivate-la/cultivate-la-tickets

In case it helps anyone, our developer found a plugin for Joomla that forces certain pages to use HTTPS and all other to use HTTP. It has some other handy features as well. Not sure exactly what's going on behind the scenes, but it works great (where the .htaccess methods weren't) so we won't complain.

The plugin is called: Yireo SSL Redirection.

It can be found here: http://extensions.joomla.org/extensions/site-management/url-redirection/11326