This is a problem EVERY SINGLE vintage car owner has.
You start asking questions like:
Why are there no screws in that section of the blah-blah-blah?
The knobs for the this-and-that are missing.
OoOooo did you see this? (Insert any automotive word for the ones in bold)
The point is, everyone will decide where their own stopping place is.
For us, we haven't reached it yet.
Today's conversation with TD went something like this:
He was reading Illinois Auto R & V (the free magazine that I always ignore located at exit in the local grocery store).
TD: We can get a Corvette engine pretty cheap.
me: Why would we want a Corvette engine?
TD: To stick in the '49!
me: That would be freaking AWESOME!!
*Evil laughs from both of us*
... okay here's the deal. Under normal conditions I'd question the soundness of a comment like that, but I'm afraid car-fever has caught hold of me.