Well, at least for now, I've scratched my itch and filled the role with a 4" Security Six from 1978. Not really what I was after, but it'll work just fine for most of what I want it to do, and I got it for a song.
Thanks to all the info found in the revolver section here, and some PF friends via text, I was able to understand what to look for and how to do a few easy checks. Timing and lock up are tight with a very little amount of perceived end shake. Had a few revolver dudes at work check it out and they said it was solid.
Love the stock grips by Pachmayr. They point really well for me. Needs a new front sight, the one on there is a bit loose (unless someone knows how to tighten it up?). Any rear sight options? Not a huge fan of stainless, so I've already got some ideas on that. Still need a 3" K frame though.