I was browsing some online. I found some tapered barrel square butts and heavy barrel round butts. I think I want a tapered barrel to leave alone and just be retro-cool and a heavy barrel round butt to have trimmed back to 3". I doubt I'd shoot any of them enough to need to care about MIM or anything else.
But then I found some West German Sig pistols and the K-frames are on the back burner.