What he said. And I'll add my vote for "leave it the way it is".
Plus - I'm one for the original patina of these things. While I really think its cool when people do all out restores to things, I really like seeing war wounds on this stuff sometimes, or just the way it aged. Call me crazy. If I had that, I'd definitely clean it up as much as possible, get it working mechanically 100% - shine up the shiny stuff, and play until my arms fell off.
