OK, so I'm going to say that my local crash site can't be recovered. Two of the airmen were killed, plus it's a well-known site that draws visitors, meaning both data plates are missing without a doubt.

But what of 42-29563? No deaths, a largely complete airframe, both data plates likely still in place... I can't find (for sure) where it is, or who owns the site. Probably a good thing, because it means looters can't get to it.