Amazon to Ebay Autolister, autopricer, auto-order

Hello, I'm looking for someone to write me a web based software package which is very similar to [login to view URL] or [login to view URL] in functionality. It must be able to read items which are amazon by me entering the ASIN (item) number from amazon, parse the item and then post it onto ebay as a listing. I will need options such as the ones on the websites above and also the ability to add other websites as modules at a later date. It will need to continually scan listings which I have placed onto Ebay and then update the listing/pricing of these listings depending on any price changes which may occur on amazon. The software will run to a number of variables such as % margin for pricing. When an order is placed via Ebay, the software will need to recognise this and then place the order via amazon and record the order ID and mark the item as dispatched on Ebay along with any parcel tracking numbers etc. For a better idea of features, I would reccomend looking at the above websites. I'm also looking for this to have the ability to create multiple users, track their usage and issue automated bills should I wish to sell the usage of this product at a later date.