I have a 1988 mighty max 2.0 that I'm putting a/c on from an 89 model. (both are carbureted) I have all the lines cleaned up, new expansion valve ordered, and I have a few questions. I plan on getting my hoses converted into barrier hoses locally, since I'm doing a r134 conversion I have to get new O-rings and a receiver drier as well. Any of you order the kit from NAPA or do you have any suggestions on where to buy the retrofit kit? Will the drier be compatible with the r134? I have heard of Freeze12, has anyone ever used that stuff before? Thanks!