Auction site development

We require an auction based web site to be developed similar to ebay in terms of functionality however we also require chat room / web conferencing facilities. The sight must be in English and Japanese and be fully automated with little administration overheads. We will only accept a bid from an experienced team who has previously completed similar style projects that we can evaluate before commence of the project. We will also require help in getting the site up and running with ISP as well as technical support for a period of 6 weeks. We must be completely satisfied (and have tested) the functionality of the auction site and the quality of the web conferencing facilities before payment will be made. Bids under 1500US will treated with preference, as will bidders with a proven track record.