[defcon65]

There is so much black-market R12 out there, I'd check truck stops and such and see if you can get it on the cheap. Years ago (mid 90's) I had a guy come into our shop selling the stuff out of the back of his truck. He'd recharge AC systems in parking lots for $50-$100 a pop, depending on how much R12 it used and how hot it was that day. He said he bought it in 20lb tanks off a ship in Long Beach, it was Russian in origin.