Customized e-commerce barter website

A simple? swap/barter website with additional features. The wesite will enable users to post requests for specific products and also to post offers. The core functionality will be like here: <[login to view URL]>, for with an open source code can be purchased to save some effort: <[login to view URL]>. In addition, the listings of products wanted and offered need to be searchable, smilarily to: [[login to view URL] ][1]Code for that one is available for free. No photos need to be included in the listings, only descriptions. Importantly, there will be a point system (like in FAQ in the teachers website above) working as virtual currency (like in some games) and users will have a choice of offering and accepting payments either in points, or via credit card. Posting a request or an offer will cost points and some other activities will cost points as well. Uses will have simple profiles (a bit like LinkedIn, but simpler) where they will specify what sort of trading they might be interested in and these criteria will be used if a user posting a request for product wants to target only qualifying sellers. Sellers will be notified via e-mail or SMS if requests matching their products have been posted. All users will have feedback similar to that on eBay. There may be a few additional features, depending on cost. Logo, artwork and graphical concept is being done by someone already. Beta version would need to be done by the end of April for usability testing, but if extended deadline would mean lower cost, we can discuss. The website is most likely to be modified and updated after launch, so long-term working relationship is possible and preferable.