CR-
I guess I'm late, and it doesn't sound much like the actions I have instructions for, anyway. The NRA guide covers the old L.C. Smith, and, while you might wish you had about 4 or 5 hands, you don't need a torch or an impact wrench. The Gunsmithing book covers the Colt '83, EMF Hartford (German version), and the Stevens 311 for doubles. If anyone else is wondering out there, it also has sections on the Spencer slide action, as well as the Winchester '87 and '97 designs.