@Arzrover set up a similar ft match at his place a few years ago. I don't remember all the details but the big one that sticks out in my mind was a 10x scope limit. Distances were given, but it was max 20fpe and max 55 yards. The ft match was the qualifier for finals, in which there were stages of increasing difficulty. The stages were things like tiny plastic safari animals, army men, paintballs, and eventually the last two shooters shot at the opening of a 1/2" conduit that curved around and hit an otherwise protected bell target. I think that final stage was at 55 yards. He had made that special target. Winner got to pick their prize and one of the choices was that cool bell target.
Anyway, it was very fun to all be using a max of 10x. Felt like a much more level playing field than when somebody has a scope that cost more than your gun+your scope+the clothes and shoes you're wearing+the value of the used vehicle you drove to the match.