I'm down about a pound of R12 and my AC is very anemic. But my body shop who did my repairs doesn't have the equipment to flush the R12 and replace it with R34 plus adapter. So he recommends that I find someone with a dedicated R12 vacuum system (very hard to find I'd guess) or just find some more R12. He had no idea where to find it these days. Where do you guys get yours when you need it?