If I am not mistaken, the Scouts had an aluminum cylinder frame, with a blued barrel and cylinder. The Peacemaker 22s were all steel, with a case hardened cylinder frame. Bluing is actually harder to replicate at home. Brownells sells an aluminum finish that would pass for original. If a gun meant something to me, I would get it prefessionally refinished. From what you are saying it sounds like a simple re-bluing. Start with something you don't care that much about and it will turn out fine.