There is a lot of discussion here and conversion math for a one time experiment. Lol.
I’m interested to see where this goes. I’ve dealt with lots of local neighbor games where they started with tourneys (cuz that’s what they’ve seen on tv) and the games often times progress (grow) into cash games.
If this is what happens, and a cash game is a hit, I’d suggest the OP not ignore the advice about getting separate chip set, for a bunch of reasons.