OK, old enough for this advise. What I have learned about vintage autos is that one of the first things, and best things to spend your time and money on is to replace ALL of the rubber. Every bushing, every single bushing, if you think it needs it or not. Assuming your engine and trans, clutch if you have one, is good That is the best thing to restore "like new" drivability.
I just told my son that and he said you needed someone to tell you that, lmao.