I'm figuring the nipples are just as screwed as the hammer face. So: Twer it mine (wouldn't be. I don't like Uberti) I'd pull the nipples and donate em to the scrap bag. Order a new set of SlixShot nipples. A new Hammer and wait for the parts to come in. While waiting, correct the Barrel to Arbor fit, Polish up all the action innards. Trash the OEM Main Spring for a nice After-Market lighter item and do a little tuning on the Trigger/Bolt spring. By the time the new hammer is ready for fitting and the new nipples arrive, it'll be ready to shoot.
Snow shoes Optional
Coffinmaker