Complete Auction site + admin + ordersystem

Do you have experience in creating auction sites? Do you have experience in creating a simple admin backend? Are you honest, intelligent and have a independent own opinion on how to make an optimal webpage work in a self-explanatory way - both frontend and backend. Can you stand on others shoulders and benefit from the functionality already present in the market, and not invent the wheel once again? I want an auction site, and I want an automized order-system. For inspiration on what I am requesting see <[login to view URL]> Any offer for this job must specify each suggested element of the delivery and its cost.