Personally I'd go for a factory re-blue (or Nickel if you prefer) from S&W. By the time you spend the money on all the tools, materials, supplies etc. I'll bet it won't be a lot less expensive and will more than likely not look anywhere as good. By sending it to Smith you might have to wait a bit, but you'll wind up with a beautiful gun once again. I'll also bet that Smith will replace springs, bunged up screws, and go over the gun before sending it back.