"No trash policy" at the L.A. plant ? I'm not doubting it ; I've just never heard of it !
Just about every L.A.-built car I've dealt with had a build sheet shoved-up under the dash . Have you checked there yet ?
This marks the first time I've seen a Duster with the rare factory cassette player ! I've seen 1 Demon and countless B-bodies with the cassette deck , but never a Duster 'til now . VERY cool ! I believe that option alone ( R26 ) was closer to $300 , which was a butt load of coin in '71 !
I really like the bench seat ! Those fold down arm rests are quite comfy .
Good luck with the rest of your resto !Keep those pics coming !