6 E-Commerce Sites To Pull From One Database

Project Description:
I am not looking for an out of the box solution....If you only know how to work in OS Commerce or a version of it this is NOT the project for you. The purpose of this development is to create a central point for our customer to manage all of their products in a simple easy to use format. We have already spent quite a bit of money on getting this done wrong and simply do not have the patience to deal with someone who does not know what they are doing.

Here is basic as you can get:

These 6 sites all need to pull from one pool of a product database. Each product needs to have the ability to add a product to one site, multiple sites, different categories in relation to the sites.

This solution must be able to integrate with Quickbooks, support multiple payment gateways and of course integrate with UPS, Fed EX etc.

The site design is done for all 6 sites, the admin design I simply needs someone who knows how to write custom sites from the ground up without using an out of the box solution.

I do not care if you are overseas but I do not want to hunt you down to get what I need. Tell me a deadline and I expect you to hit it. If you think you can handle the project please bid.