Here is an odd question. Do you ever pic up old AC units, fridges, etc. and take them home to fix them up and covert them to non R-12. R-22? People collect everything from matchbooks, barbwire and huge old casino signs.
I got nothing collectable, but I was given an old AC unit that fit on top of an old RV. The shroud it gone, and it was a shop trainer for YEARS, but it works. The instructor spotted me some virgin R-22 instead of the reclaim tanks we use in class. Did a tripple ripple dipple evac on it and got it zeroed in. Plenty of cold air comming out of that unit. Just have to fab a cardboard stack for the condensor fan to vent out the window. I'll add photos later.