So AC in 80's (Brian A) did make MKIII and MKIV. Brian did both, only the MKIV was different (beefed up) as it was necessary to pass 1980's DOT as these went through Ford dealers. Brian, like Shelby, did whatever you wanted to pay for.
Brian was making restoration parts for originals in that time period too. If these were discarded AC items they were connected to Brian A in some way.
Not sure they were usable if Angliss tossed out. He was not crammed for space, he had the room and would not have tossed items like trash as he paid for them. (or Ford did)
Ah the stories, sounds like the guy is trying to connect AC to Shelby.
Sounds like BS.