Its about time to turn on the A/C in Texas. Problem is is quit working, probably has leaked the refrigerant out. Instead of working on the old system, I'm thinking of updating it. At car shows, I see alot of older vehicles set up with a newer style compressor that is very small. I've talked to a few of them and they say the smaller ones run more efficiently and cool just as well. Have any of you done this? Is this compressor designed for the new type refrigerant? What else is involved besides figuring out how to mount the thing? I want to say the compressor is called Sanderson, Anderson, Sanders or something to that effect but I'm not sure. Thanks in advance for your help.