There is a approx 50' pilothouse model in our harbor.
They look like nice heavy boats. Typical of the TT's built in that era.
I would expect the same "big picture" challenges on these as you see on most any boat of that era. Possible old steel tanks, balsa cored decks penetrated by thousands of screws for teak decking, etc...
It goes without saying that any 30-40 year old boat is going to reflect the maintenance it's recieved more than anything else.