Synchronize inventory & orders using API and XML

Preferred coders experienced with Sellbrite api integration or atleast having successfully executed similar api integration applications with other ecommerce systems. I need independent running scripts / Programs to be developed in ASP.net (latest framework) to perform each of the following tasks : 1) Synchronize Product inventory Stock (from our suppliers to Sellbrite) 2) Synchronize Product Pricing (from our suppliers to Sellbrite) 3) Synchronize New Orders Received (from Sellbrite to our supplier system) 4) Synchronize Order Status and Tracking number (from our suppliers to Sellbrite) Detailed requirements of the project 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 and the developer has no rights on the source code. 3) The coder will need to study and understand Sellbrite API integration on their own. API Reference guide if required can be provided by us. 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 for each milestone at a time and released on completion of mutually agreed milestones. 5) The scripts must run successfully on our Windows server and the coder will assist in setting up the scripts on our server. 6) Need this to be completed in 2 weeks.