Understandable questions, but a little advice: if you to step into the vintage market, do your own research. These forums are great for specific questions or 2nd opinions. But in my experience, not a substitute for good old self taught knowledge. In the long run, it increases the chance for a good find.
So in this case: what are your concern, what parts do you have doubts about?
Not a critique, just some advice. Good luck!