Welcome! You'll want working A/C, naturally, so when you locate a car it's a critical element. A shop will charge $1000 to $1500 to replace everything (compressor, receiver/ dryer, belts, re-charge etc) so allow accordingly. You could fix it yourself, of course, but I have no patience, tools, or skills so I just farmed it out on my '94 cab. Glad I did--I got to spend my time driving it instead of cursing it. I found my cab in Burbank, flew down to pick it up and drove it home. Nice rust-free California car, it's my "keeper" Porsche.
Have fun hunting, and good luck. Buy a cab unless you want to do DE track events.
JG