Auction site needed. Auction script needs to be havily modified (reverse auction)

Hi, we are looking for freelancers working on our new project which will be a reverse auction site. THe current joice of the script we will get is: Phpauction Reverse Source >> source code version or ILance® - Instant Marketplace + plugins several features will have to be added to the scrip (eg. layout, design, creditcards, google maps, display of various varibles on the auction price) the site [login to view URL] was done with phpauction, so this would be a point to start with. several aspects and functionality of the site [login to view URL] will need to be included. same goes for [login to view URL] regarding the profile functionalities. Please do bid only if you worked on auction sites before, and studied them extensively. There is no bid budget on this project since this will be ongoing, there will be a period of beta testing and back and forth consultation. So please suggest fair starting quotes. and show us on what sites (reffering to the current project you worked on) Looking forward hearing back from you, C. P.S. Please feel free to make suggestion regarding scripts used and options !