I know this is sort of off topic, but I recently met a gentleman at a local car club gathering that used to work for Regency Top, a small Canonsburg based upholstery shop who back in the late 60's did lots of vinyl top/upholstery jobs for nearby Yenko Chevrolet.
The gentleman's name is Jerry, and he's actually still in the upholstery business today, running a small operation out of his home. We got to talking about his connection to Yenko and some of the work that he used to do for Don. He explained that he was responsible for upholstering/sewing up covers for many of the original Stinger Corvair fiberglass racing seats, and that he also remembers putting vinyl tops on more than a few of Yenko's new cars, because Yenko was "cheap" and could get Regency to do the work for less than what GM would charge him for an RPO.
I asked what they'd do for vinyl top trim on an originally painted roof car and he explained that they would often make their own trim pieces out of polished aluminum channel, as it was cheap and easy to form to nearly any roofline. He had a sort of "whatever it took, we'd make it happen" attitude about the whole arrangement of his working for Yenko. He even claims they would drive the finished cars back to Yenko and pick up the next one needing work, really getting on the performance cars when he'd get a chance. He mentioned specifically remembering a "Yellow 427 Chevelle" that he and the guys at the shop had quite a time joyriding in.
But even more interesting than all of this, is the fact that he also told me that he remembers putting carpet kits in Novas that were so basic that they came with only a rubber mat from the factory. He couldn't remember specifically if they were "Deuce" Novas that he did, or just plain janers, but he claims he clearly remembers putting carpet in a few Novas for Yenko that were delivered without it. While I haven't heard of any documented examples of this, it IS entirely possible that some Canonsburg sold Deuces could have had Regency trim shop rugs put in them when new, if it were at the request of the customer.
It kind of makes you wonder what ever happened to the new rubber mats that were removed?
Maybe I'll give him a call just for kicks and see if he's as big of a pack rat as me.