All of this, yes. I think a very large space is needed as a LOT of people will want to come. For music, if it's possible to have the space for it, I think an open jam would be right up his alley (unless things have changed significantly). And it would be a matter of figuring out who are the right few people to take charge of that.

Definitely post about the help you want/need and if there should be a collection taken up to cover costs.