If you currently have a team have you spoken to them by any chance that they might know anyone personally or even a friend of friend that can help you out? Make sure that you have exhausted all your options before resorting to finding a developer online because it is one of the last things you need to do which is having a developer that will work for you online, you don't even know if they can be trusted with the script and codes you will give to them.

About the prohect you will be having. This is a nice idea having some kind of P2P price curator service for the industry, this will allow users to have the best deal they can get that is available on the market. But I am wondering how will you manage to keep the data accurate and up to date? I know this will be a lot of work and I really don't know how will you manage to even sync in with the prices they are currently offering.