Amend and redevelop existing website template on CRELoaded Platform, written in HTML and PHP

I want to amend and redevelop an existing website template of an eCommerce online adult toy store. The template is being supplied by a dropshipping company and will come complete with 3,000-5,000 of their products already installed. I want to change layouts, menus, toolbars, colors, fonts etc on an ongoing basis. In the coming weeks I also want to incorporate an adult dating part into this site so that my website will be an online adult toy store AND an Adult dating website all in one. The adult dating part of the site will be modeled on an existing layout but will need to be built from [login to view URL] site will be hosted on a standard Linux CPanel.