Cre Loaded Project for Experienced Professionals

I am Currently running CRE Loaded Professional B2B v6.3 with various add-ons. I want to switch to the latest version of CRE Loaded Professional B2B v6.4.1a. The new script is installed and running in a sub-directory; database has been upgraded but needs some minor tweaking. I Require the the following: Port installed add-ons to the new script. I have about 4-6 add-ons at the most. (No Copying of Whole Files. Only port the necessary code for add-ons to function properly. I will monitor this closely.) New script must look and function 100% like old script, except for any changes noted thru PM. Coder must port all necessary code to make everything function exactly like old script. (Again, only port the necessary code for add-ons to function properly. I will monitor this closely.) Must follow all necessary SEO practices to match and maintain existing standings. This includes any necessary coding to achieve this. Tweak template to match existing. Do Not Copy Whole Template directory. Entire site must pass W3c validation. Must provide full documentation of all changes made and place comments on code prior to final payment. More details thru PM.