Thanks Tim and ack!
I have all of the old a/c system out except for the evaporator (and I want it gone too). It's just sitting there for now until I find an oiler, separator, and 12V pressure cut-off on the cheap. I was thinking I might just stick the oiler and separator on there with a pressure blow off unitl I get around to plumbing a tank, etc. I'm cheap and it can wait for now.