Amazon Feed for Zen Cart

I need a Zen cart admin module to integrate with the Amazon Seller Program. The admin must do the following: 1. Post documents to Amazon 2. Retrieve documents from Amazon 3. Retrieve Document Status 4. Post Document Acknowledgments 5. Associate Zen Cart categories to Amazon Classification guides It will be installed on an unmodified Zen Cart installation. Amazon APIs, Item Classification Guides, sample Feeds, and WSDL will be provided. Budget for this project is $200. Higher bids will be ignored.