XML Integration - Data Exchange

I have an Oscommerce computer & electronics estore. Looking for a data driven website. Looking for someone who has done a similiar projects. Helpful XML sites: [login to view URL] [login to view URL] [login to view URL] This project consists of creating submission and response structures so large amounts of data exchange can occur in real-time. The format of my Supplier's XML submission and response documents are defined by Document Type Definition (DTD) documents. Important information as data names, whether the data is optional or required, number of sequences.....are contained in the DTD's. Sample coding and user guide will be provided along with a 1.800 # to supplier tech. center. Detail Description: You simply connect to the internet, execute a HTTPS POST operation to a specified URL (testing environment) and send your XML submission document. My supplier sees your document, accesses and validates its content, performs all necessary action (queries, modifications, updates...) and creates a XML response document in a matter of seconds. Sample source code will be provided in the following methods....JavaScript, Java, TCP/IP, C Sharp. After obtaining the DTD's and completing any software coding or setup, you test your XML messages with Supplier's XML system in a testing environment. Testing will be performed in the following sequences......product availability, product price & availability, order status, order entry. Once successful integration....then you will setup live production into Oscommerce. ps. User guide, sample code, limited live help will be provided. Please contact me if you need more detail information. Thanks for your interest. Please provide your best time-frame to complete the project.