Strong Shopify Coder - CSS, custom coding a must

I'm looking for someone to help me make some tweaks to my website. We are in the process of switching over from the Icon Theme to the Showtime theme within Shopify, but have some bugs that need to be fixed.

Specifically:
* Transfer over all custom coded functionality from Icon Theme over to Showtime Theme. Most of this has already been done, but there are about 3 items that are not correct yet
* Ensure all custom css from product pages is functional and responsive in Showtime Theme
* Optimize product pages - I have a very detailed list of what needs to be done here.
* Make sure site is completely responsive--currently there are some issues within the product pages and css