Reverse-auction style service for a specific market - there's nothing really new (yet) in the actual idea, it's just the target market that isn't served yet in

Reverse-auction style service for a specific market - there's nothing really new (yet) in the actual idea, it's just the target market that isn't served yet in the UK so I wanted to start validating there's a need for the service in the UK (and as there's no competitors in this market as yet and it's a market that can lend itself to this style of service, as evidenced by the US site) - once I'm happy in my research that there's a need/base that will use it, I'll start planning more about how I can provide a unique service for both parties targeted by it