I agree, it's been damaged and someone could get hurt with it down the road. What I cant figure out is why anyone would put that much time and money into a gun that was damaged ?.

If I were to have a gun engraved it wouldn't be on a damaged receiver, it would be on a receiver that was as perfect as it could be, and it sure wouldn't be because I was trying to cover up something that was wrong with the receiver.

Are walls that rare that in order to have one you have to take a stressed, cracked, or ones that have been blown up and weld them back together ?.

I don't think so, and I would not want to be the "proud" owner of something like that. Ever wonder where all the extra wall parts come from, they should be coming from guns like this but guess not.
S T