Sounds potentially viable. You've described a way to structure the business in terms of a 20% revenue share. So it looks like you answered your own question.

The real way to test whether your model works is, of course, to try it out. That means (1) finding people whose services you'd like to promote; (2) asking them for feedback on the rev share idea; (3) attempting to market them, as you described. Put it in practice and see.

I know that some people would be curious and potentially willing to give it a shot. For instance, over the years, I have personally offered a 15% referral commission to certain colleagues who might send me a client for custom naming gigs, domain procurement, or other consulting.

That's not too different from your 20% rev share idea. So, depending on how you go about things, the idea might work.