Web program for construction bidding site.

I need a web program and site built that builds off of what is already started. This is a construction bidding site for homeowners where they can post projects and have contractors bid on the job they need done. It is a similar to bidabuilder.com. I already purchased freelance software for the admin panel. Freelance Zone :: The Freelance Auction Software The basic layout is done but now I need a quality programmer to bring it all together and make is appealing and easy to use. I have no preference on language but I need the job up and running in 60 days. I need a strong CP that I can modify and adjust as needed the content of each section and change for different cities.