Atlas, I have two thoughts on this ...

#1 - If your club is not allowing non-club members to come and shoot for a fee, there is one possible avenue for $ ... charge $5.00 an hour. This might require you guys to expand your range or upgrade it a bit.

#2 - We have a place 1/2 an hour from me that has an awesome outdoor 3D set up through the woods .... targets at unknown distances, and lots of 'em. I know you said the monies needed to fund that wouldn't be available, but this course has paid for itself 100 times over ... again, the key is to allow non-members to shoot for a fee .

Good luck Bro ...