Zend Framework - Integrate 1ShoppingCart as Payment Provider(repost)

I am looking for a Zend Framework Programmer that can integrate 1ShoppingCart into our members portal so that we can accept all of our payments through the 1ShoppingCart platform. The workflow would be similar to below: a. You supply the 1Shop(s) user id, and api key and program a url where 1Shop can send back IPN details in our members portal admin panel. 1. You would setup a product in 1Shop. 1Shop gives you a unique product ID for this product. You create this product in our members portal and supply this ID to the product. (the product creation piece is already programmed) 2. You program each of the products so that they autogenerate a return url/thank you page that we can give to the 1Shop product we just created. This is where the users are redirected to with a successful purchase 3. users logs into members portal and tries to access a product they dont have access to. They see the 1shop buy link and are redirected there to pay. they make payment and are redirected back to the members portal thank you page. If they already exist as a client then they should be upgraded to the correct membership level. IF they are not already a user then they should be added to the database 4. a welcome email should be sent us with their username/password 5. we should be able to use multiple 1shop carts