Disclaimers are shit, dont bother, its just more to say that you conform to the rules
our local wall is being taken to coart at the mo, a guy fell off landed badly and broke his ankle, but insurance and disclaimer doesnt count for anything apperently.
See if you run it as a private club, it doesnt matter if you make money or none profit, the fact you are charging puts you in all sorts of complications.
Also as soon as you start doing direct debits and money transferring through the bank that you cant account for, thats when you are liable, you are then charging people to use your wall. So you will then need all the paper work to go with building a wall.
I set one up not so long ago, the deal with that was, every one chipped in to start the wall, I rented the premises, which was ran as my office for work, then to get the money out of the guys using it I had a t and coffee fund, that every donated to.
Also there was a gentlemans agreament that if anyone wanted to join the gave me a one off lump of dosh.
Do you see what i mean.
you could always stick a pool table in there, or some chess boards and run a chess club,