Build Magento Extension

Hi All, We are looking to build a Magento extension that can allow admin to compare product prices and shipping from Amazon, eBay and Google Shopping, based in product name. something similar like the link below: [login to view URL] Requeriments: 1. We need admin select the products to compare 2. Hit the button and get the results based in prices + shipping cost with links to the product on Amazon, eBay and Google Shopping. 3. Option to hit a button to update "Only Price", "Only Shipping" or "Price + Shipping" same for "Only Name", "Name + Description" or "Name + Description + Image" 4. The extension need to have the option from admin to update API or any token. PLEASE READ FIRST OUR REQUIREMENTS AND BID WITH YOUR PRICE AND TIME FRAME, FAKE BIDDERS WILL BE IGNORED. ALSO WE WILL MAKE FULL MILESTONE AND THIS WILL BE RELEASE TILL THE PROJECT IS COMPLETED, NOT EXCEPTIONS SO DON'T INSIST. IMPORTANT: this has to be an extension that we can install on any Magento store, so you can work in your own server. Thanks.