Welcome!
Look at the air brush as a long term investment like you would any other skilled use tool.
Expect to pay a couple of $C's before you get everything you need, but that's like a good golf club or a fishing pole, right?
In the event the knuckleheads get into modeling; the investment would be absolutely priceless.
Anything to get their noses out of the phone.
St. George? Flew in there once and drove to the canyon. Beautiful country.