In my humble opinion, I agree with the others that have suggested that it would look (and be) a much cooler relic if now left alone. If you want an old revolver to display for some reason, you could pick up some old similar looking piece for under $100 (maybe under $50 if not working). Put this in a neat shadow box for the wall or coffee table and include a little story/ provenance and now it tells a story. By dressing it up with new grips etc., you'll probably hear "why did you do that to it?" But it's yours and you should do as YOU like.