I associate Carver with the early 80's (and after). Assuming the Carver is (and you would buy) a class A/B amp, is there a "latest design topology" that results in real (audible or significant reliability) improvements?
I think a good amp from the mid-70's is still a fine amp aside from wear and tear (and not having a trigger).
That said, I wouldn't be too quick to put $1100 into it unless I had a lot of history with it and had good confidence in the shop.
But I appreciate you recognize the nostalgia factor
Call me human, but I tend to think of gear I've had for multiple decades as an old acquaintance with fond memories and would rather revive it than toss it on the trash heap!
I know that is nonsense from a strict logic standpoint, but I also know the value of being honest with myself!
Wish I could somehow still have my first car - '65 Dodge Dart ... it was my accomplice in so many adventures!