Well first you never said if you had a New Model or an Old Model it makes a difference. If you have an OM you may want to try a stainless Ruger Old Army grip frame if you can find one now that Ruger has discontinued the gun. Ron Powers offers a 2 pc. stainless grip frame that gives your Ruger the grip of a Colt SAA for both the OM and the NM. If your gun is a NM there are several options. The Ron Powers that I already mentioned, Brownells, Gun Parts, and Rugers parts department. Not to mention the many used ones you can find or ask for in the many gun forums out there. Least to remember when getting one is to order a set of grip frame screws to. If you get a used one it will already be finished but might not match your guns frame the best. If the missmatch is removing steel from the grip frame thats not so bad. But if you have to remove steel from your gun to make it match then a reblue job is going to be needed. If you buy a new frame it will be oversized and ready to fit to your guns frame. I have a Ruger Bisley Vaquero that I am putting a used stainless Ruger KXR3 RED frame right now. I am having to match both the gun frame and the grip frame. But I planned on rebluing anyway to get rid of the CCH decal on the frame.