Hi all. I just acquired an older model gas powered lincoln electric stick welder. I'm looking to get it going for building a nice wrought iron fence but I need to get some parts. Any ideas on how to identify what year and model this thing is, for both the generator and the engine? Any answers on how to or what website to check out would be greatly appreciated. This is an OLDER model, i.e. best guess 70's? with from what I was told an ONAN engine.