Thanks for your responses. A few years back our club dropped 3 gun due to differences and lack of communications behind the 3 gun organizers and the board, and recently we had some members ask about bringing it back and heading the program. This time around I think we can make it work.
The proposed head of the program gave the same numbers they've seen at other clubs. That's fine by us, since it will be easier to get up to speed with 25-35 rather than 100 people showing up. Last time we had a noise complaint from our neighbors, but that was a large all-day match, and the organizers said any future matches would be spread across 2 days to spread the load.