Need Help: 1965 Valiant parts on a 1966?

I just found a 1965 Valiant parts car at a junk yard. It is a complete car, but it is 1965. I have a 1966 and know that needing parts is inevitable. I want it mostly for the glass that would be otherwise hard to get in the event that I needed it.

My question is: What parts are compatible and what parts are not? Would it be worth $500 if I could talk them into it?