Amazon Web Services XML API integration expert needed.

We sell products on Amazon.com. Hence needed an expert coder who has past experience on working with Amazon Web Services XML API integration. ONLY CODERS HAVING WORKED WITH AMAZON API PREFERRED. The following are the 3 tasks to be achieved using Amazon API: 1) Synchronize Inventory Stock (from our suppliers to Amazon) 2) Synchronize New Orders Received (from Amazon to our local MS SQL DB) 3) Synchronize Order Status and Tracking number (from our suppliers to Amazon) Details of these tasks are explained in the attached document. Notes : 1) Prefer to get the coding done in ASP.net. 2) All source code written will be handed over to us on completion. 3) The coder will need to find Amazon integration details on their own. Our supplier side integration details will be provided by us. 4) STRICTLY NO ADVANCE PAYMENT WILL BE MADE. Milestones can be created and full money escrowed and released on completion of mutually agreed milestones. 5) Need this to be completed in 4 days.