This has been done over and over again but has never worked out. I was myself exploring product market fit for a few months for a similar idea. Lots of mockups and customer interviews later->
1) Most people will end up needing some form of technical help.
2) Getting technical help for non-cash is not easy -- this is similar to finding tech cofounder problem.
3) For any non-tech help, the quality sucks because of lack of passion.
The only model that I have seen working is giving advice and sharing lessons and connections. Everything else that requires execution has not worked.
If this model had any chance of success, YC , 500 startups and Techstars would be doing it themselves for their portfolio companies. But they don't and for good reason .. it doesn't work.