Hmmm. As a traveler, I'm not sure I would find this of interest. Mainly because I still have to book everything myself. This could get onerous if the best deals have constraints that are hard to explain or easy to get wrong. I suppose that would be one of the difficult things to assess when viewing the deals pitched by the deal finders. Without knowing the agony/pain involved in the itinerary, you can't quite know if the best deal is worth it. Sometimes a great deal can be very inconvenient (long layovers, super early/late flights, multiple stops, etc) and not always what you'd choose if you knew the details. But revealing the details of the itinerary would seem to undermine the need to pay for a search by the deal finders. If you see the full itinerary, then people might not pay, unless all the pain points can be disclosed by the deal finders without giving too much away.
I dunno. Not for me. Sorry.