It's deja vu all over again...
Sebago Son- No, I don't worship diplomas. Mine or any other's. They are mere symbols. It's the accomplishment that matters. The experience and acquisition of knowledge. The diploma is just paper.
To the original question, we need to decide two matters. 1. What is the purpose of the revolver? If it is nothing other than a collectible object, then do nothing. Display it as is. If it is a firearm, then some sort of repair would be in order.
But that brings us to issue #2. Can it be repaired? And at what cost? If a master smith demands 3K to make it good, is that a wise investment? How much can we spend? Every man will have a different response to that.
As for me, I would not have bought that gun at any price.