Feed / Price / Full Site / Software

Hello. What i want is a little different to normal. I would like a website that is going to help my website out. I have a product feed that is sent to google to create the product listing adds. I need a website where i can supply this feed to and it creates me a report with google analytics data to show which products are selling through the product listing adds, and which arent. I then need the site to produce a product listing xml file that i can alter and submit to google for the product listing adds. As well as this, i want the software / website to compare my prices to other websites, and alert me to other peoples prices, tell me when they go up/down etc. Please only bid on this if you know how to do this work. This needs to all run from the feed that i provide.