Just kidding...
Seriously, I'm not an expert on this kind of stuff, I just post on all the gun threads.
If it were me, I'd get it fixed, test it, then put it out to pasture like an old classic car and then buy another one to replace it. And find myself a nice, moderate practice load with a hard-cast bullet around 240 grains moving at no more than about 950-1000 fps, and try for 10,000 rounds.
Just MHO.