Missing grade?

[David Noble]

Joseph, if you are just wanting to shoot a few times or occasionally and you are a bit handy with gun repair and woodworking, you could probably get the gun back to light shooting condition. The stock will need to be removed, cleaned up, glued or epoxied in the cracked areas. The locks are set back from the frame a bit so this will have to be addressed also. Some glass bedding might tighten the stock to the frame and close the gap for the locks.
Mechanical repair depends on the cause of the hammer problems, but can certainly be fixed with careful work or replacement parts.
The barrel pitting, if not too deep, will not affect the ability to shoot, but I would recommend having a qualified gunsmith inspect the barrels for wall thickness. The barrels should lock up tightly to the receiver but if they are just slightly loose you can cut a shim to place between the lug and the pivot pin to tighten that up. If they are excessively loose then the repair would be much more difficult and a tad expensive to have it done correctly.
All in all, you should be able to get the gun to a more shootable condition without too much expense if you can do all the work yourself. Shoot light loads of the correct length and don't use too much oil!