Thank you for your response! Over the next summer I'll probably be relying a lot from input from members about my car. The information I've seen posted by Pete67400 (another Minnesotan) about the AC system is unbelievable, what a wealth of knowledge he has! As I get into this hopefully I'll find out what components of the system will need to be replaced, both for upgrading to the R134A or due to the years of exposure to the air with the hoses off. So anyone reading this, please help if you can. I read that there is a good possibility of mouse nests in the suitcase, especially since mine sat covered outside for years, so I'll need to figure out how to disassemble that and check it. But anyway, thank you again and I'll be appreciative of any help I get!