penny auction (swoopo.com) style

Hello, this is for a new project [login to view URL] style, we can buy the whole existing software at [login to view URL] and have the french and english language installed. Now I need to know as they want an extra $200 to remove the name and credit at the bottom of their page etc... SInce I need to make modifications to it like removing their names, maybe give you a new header so you replace the existing header by the graphic I will give you, changing buttons etc... I will do the graphic for you. I need to know if you have much experience with penny auctions lke this and if you know other sources that would cost me a lot cheaper for the licensing. I don't want to reinvent the wheel as it exist already, but I need to find someone that will take an easy and very professional website template and install such o ascript for me and make sure there is no credits or powered by... and test it and make sure it works, ow much will you take for the ready-made stuff they did for previous client and show me some URL.