So i made a bit of a whiskey fueled decision and bought an old MCH-6 site unseen. The upside is that the seller is a professional aquaintance that i know to be trustworthy. Anyway, he received this in trade for some work done and has no use for it so offered it to me. I have yet to put hands on but, he sais it does turn over and has compression. Im already planning on an almost certain 4th stage replacement along with all the consumables. Does anyone have any other suggestions as to probable issues as i bring it out of hibernation?