Looks like if anybody actually tries to do something with this orphan (other than cannibalize it for parts) they will either end up with a Franken-Gun version of the original or a highly customized version that makes no attempt at originality. I think I would go with the latter.
How about adding a new thumb pad to that abbreviated hammer spur to make a "cockeyed" style for single action work?
I'm still looking at that missing trigger guard and wondering whether I could get anything done about it. If I didn't have another donor frame to substitute in there, it would be a deal breaker for me. If you had to pay for that repair to the original frame (rather than being able to do it yourself) the resultant cost would make the project's cost to finished value ratio go waaaay out of whack!
I guessing that in the end I'm going to have to look at it like the cannibal and see how much "meat is on the bones." That is, how many good parts I could salvage to use on another gun. IMHO, it's not a sufficiently rare item to take extraordinary measures to save that specific gun. YMMV, of course.
Froggie