htaccess redirect all but three pages to https - apache

Question

I know this sounds like a duplicate but I have tried as many methods as I can find and I still have not gotten this to work. So please do not auto mark this as a duplicate.
I am trying to redirect all pages of http://www.domian.com to https://www.domain.com with the exception of three pages:/products/product1, /products/product2, /products/product3
I also want those pages to always direct to http since if an https page links to it via a relative link, it will naturally have the https already there.
Also in play is that this is an expression engine site where I am removing the index.php from the URI.
Current Htaccess, which results in those three pages still being https even I go to Http for those pages.
### secure .htaccess file
<Files .htaccess>
order allow,deny
deny from all
</Files>
### EE 404 page for missing pages
ErrorDocument 404 /index.php/site/404
###Block Access to directories with no index file
Options -Indexes
### Simple 404 for missing files
<FilesMatch "(\.jpe?g|gif|png|bmp|css|js|flv)$">
ErrorDocument 404 "File Not Found"
</FilesMatch>
### Although highly unlikely, your host may have +FollowSymLinks enabled at the root level, yet disallow its addition in .htaccess; in which case, adding +FollowSymLinks will break your setup (probably a 500 error), so just remove it, and your rules should work fine.
###Options +FollowSymlinks
RewriteEngine On
RewriteBase /
###Removes index.php from ExpressionEngine URLs
RewriteCond %{THE_REQUEST} ^GET
RewriteCond %{THE_REQUEST} ^[^/]*/index\.php [NC]
RewriteRule ^index\.php(.+) $1 [R=301,L]
### Add the www
RewriteCond %{HTTP_HOST} ^domain\.com
RewriteRule ^(.*)$ http://www.domain.com/$1 [R=permanent,L]
###each option I try I replace in this block as a reference
RewriteCond %{SERVER_PORT} 80
RewriteCond %{HTTPS} !on
RewriteCond %{REQUEST_URI} !^/products/product3
RewriteCond %{REQUEST_URI} !^/products/product1
RewriteCond %{REQUEST_URI} !^/products/product2
RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R=301,L]
######
RewriteCond $1 !\.(gif|jpe?g|png)$ [NC]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?/$1 [L]
###
Also have tried this which results in the same as above:
RewriteCond %{HTTPS} !on
RewriteCond %{HTTP_HOST} !^(domain\.com/products/product1|domain\.com/products/product2|domain\.com/products/product2) [NC]
RewriteRule ^(.*)$ https://www.domain.com/$1 [R,L]
RewriteCond %{HTTPS} on
RewriteCond %{HTTP_HOST} ^(domain\.com/products/product1|domain\.com/products/product2|domain\.com/products/product2) [NC]
RewriteRule ^(.*)$ http://www.domain.com/$1 [R,L]
Tried this alone just to see if would be able to navigate to http://www.domain.com/products/product1 and at least not have it rewrite, but it still rewrites to https
RewriteCond %{HTTPS} !on
RewriteCond %{REQUEST_URI} !/products/product1 [NC,OR]
RewriteCond %{REQUEST_URI} !/products/product2 [NC,OR]
RewriteCond %{REQUEST_URI} !/products/product3 [NC,OR]
RewriteRule ^(.*)$ https://www.domain.com/$1 [R,L]
Tried this as well, which again still writes those pages to https. Plus if I try to go to http , it rewrites to https and doesn't remove the index.php
RewriteCond %{SERVER_PORT} 80
RewriteCond %{REQUEST_URI} !^/products/product3
RewriteCond %{REQUEST_URI} !^/products/product1
RewriteCond %{REQUEST_URI} !^/products/product2
RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R=301,L]
RewriteCond %{SERVER_PORT} 80
RewriteRule ^/products/product3 http://www.domain.com/products/product3 [R=301,QSA,L,NE]
RewriteRule ^/products/product1 http://www.domain.com/products/product1 [R=301,QSA,L,NE]
RewriteRule ^/products/product2 http://www.domain.com/products/product2 [R=301,QSA,L,NE]
I have honestly tried about 10 -15 versions of all this above and still cannot get it. Including adding index.php? to the request_URI in case that it sees that as part of the request_URI before it's removed. I either end up with the page still rewriting to https or redirect loop land.
Am I missing something simple, is something in the wrong order? I'm just at a loss.
thanks for any help.
UPDATE:
Here's what I used to get it to work:
RewriteCond %{HTTPS} on
RewriteCond %{THE_REQUEST} (\s/products/product1|\s/products/product2|\s/products/product3) [NC]
RewriteRule ^ http://%{HTTP_HOST}%{REQUEST_URI} [R,L]
RewriteCond %{HTTPS} off
RewriteCond %{THE_REQUEST} !\s/products/product1 [NC]
RewriteCond %{THE_REQUEST} !\s/products/product2 [NC]
RewriteCond %{THE_REQUEST} !\s/products/product3 [NC]
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [R,L]

Answer 1

Here's how we achieved this on a site with a webcam that was in an iframe that wouldn't work on SSL. This was also an ExpressionEngine site.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
#force www instead of non-www
RewriteCond %{HTTP_HOST} ^domain.co.uk
RewriteRule ^(.*)$ http://www.domain.co.uk/$1 [R=301,L]
# HTTP/HTTPS handling
# Force HTTP for webcam page only
RewriteCond %{HTTPS} on
RewriteCond %{THE_REQUEST} \s/webcam-page [NC]
RewriteRule ^ http://%{HTTP_HOST}%{REQUEST_URI} [R,L]
# Force HTTPS for all pages except webcam
RewriteCond %{HTTPS} off
RewriteCond %{THE_REQUEST} !\s/webcam-page [NC]
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [R,L]
# Removes index.php from ExpressionEngine URLs
RewriteCond $1 !\.(gif|jpe?g|png)$ [NC]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /index.php?/$1 [L]
</IfModule>