Shopping Cart Integration

We have an Online Design Studio we need to integrate into a Joomla Shopping Cart (ie Virtuemart). Currently we have a fully functional custom coded website that uses points to allow the user to download the created design. The Joomla concept will not allow the user to download the template, but instead give the shopping cart the details for the administrator to be able to download the files related to the product. The Design Studio tracks a Category and Product ID in My SQL allowing the system to integrate easily with most shopping carts. At this point, the administration and retrieval of the created files CAN be separate from the shopping cart integration. And possibly based on our existing system. (We would entertain admin integration as part of the project or a separate project in the near future.) The current concept is: • Items will be marked at a Design item or not. (Admin setting from within the Cart admin) • Design items must have a user design ‘attached’ before they can be added to the cart. • Ideally when viewing a design item, the system would display (thumbnails) all templates matching as well as all matching designs the user already created. If the user has an existing design they can add the item to the cart otherwise the only option would be to open a template to make their design. • User saved designs (and associated information) are stored in a database structure. (Based on the existing working app.) • Must be able to show saved templates (thumbnails), possibly by categories / product and be able to order from shown templates. (The DB will have the associated product from the Joomla cart.) • The cart will need to store (ideally hidden from the customer’s view, but not required to be hidden) the design ID as well as the user’s ID so the admin processing the order can see that information. (Required for retrieval) • Products must have full functionality Virtuemart properties for things like qty discounts, coupons, etc. etc. The Design Studio is Flash based and integrates with PHP information to the webpage when the user exists the design mode making it easy to integrate (We have docs on this). Based on the fact that we have already designed a points based cart we know we could handle integration, we are just overwhelmed with other projects and do not want to learn Joomla integration at this time. Requirement: Well documented code so that we can make minor tweaks or possible future enhancements to the initial integration. (Most likely we would contact the winning bidder to do further integration as needed.)