The boxes look original to me. They have the same surface rust/dirt as the rest of the bottom. The dash got tossed when his wife decided to do a little cleaning up around the house and thought the cracked, faded thing in the corner was junk. I haven't talked to him in a week or so, but the last time I did he said he was going through all his parts boxes to see if he can find anything.
He thinks he remembers seeing fender tags in the past, but he doesn't know if they were for his car, or just a set that somebody showed him.