328307 Auction site required

Hi Looking for a Lowest unique bid auction website that works the same and sam functionality as [login to view URL] (front end) more info: [login to view URL];amp;amp;&type=1 Users purchase credits in order to place a bids All bids subtracted from the users credits. must be able to set the number of credits used per bid for different auctions. >>>> one auction will require a minimum of 1 credit per bid and another will use 2 credits per bid. If you already have such a script for purchase please provide demo details.