"Wanting" is not a "demand for them". Lots of people have "wanted" or claimed to want various parts repro'd over the years. Never happened. When the repoprs can see enough PROFIT in spending the money for tooling and such, THEN it can happen, but only oh THEIR time schedule. Then, when the price of the restored cars get high-priced enough to support their prices, Even better.
Twenty years ago, B/E-cars were in a similar situation that C-bodies always have been. In the '80s, I had a friend who scoured salvage yards to get the customer interior for the '67 Camaro he was rebuilding (which didn't have that interior to start with).
There was a Camaro parts vendor in southern Arlington, TX that stripped all of the Camaros in this area, that he could find, to start his Camaro parts business. IF there were any new parts, GM was still making them, or at the end of their supplies of them. All used and cleaned up, nothing "repro" back then.
Other Camaro vendors had new items which GM was still selling, typically. Everybody had the same gaps in coverage, by observation, back then.
Until there was YearONE, no repro Mopar parts, usually. The first sponsor of the North Loop Dodge Performance Team, the parts manager Bart Cooper, also invented the Find-A-Part system. We had access to that network, via the dealership. Later, other similar services came online, as Parts Voice. Many Mopar dealers had obsolete parts stock which they were willing to sell, which Bart also tapped into with their Obsolete Parts Warehouse. LOTS of things in there! Carb jets. A front seat lean back GLS seat cover. And on and on. That was at the beginning of the repro parts era. Brad's NOS Parts came by once, too.
There ARE some parts which are/can be similar between the various engines and platforms, IF you know what they might be. Like fuel pump to carb fuel lines and some other smaller items.
It was a different "game" back then. It was common to make a several hundred mile trip scouting Mopar-related salvage yards. There were some larger ones in the Midwest, but they're now gone. Still a few in the Georga region, though. When we did the Superbird, YearONE was the main vendor used, fwiw. That was in the early '90s. But no sheet metal of such was needed.
In current times, you can wave the Magic Plastic at the computer and things happen. Or, dial a WATS line number and do similar. But mainly for B/E-cars, back then. Even A-bodies didn't have enough interest back then, either, but that changed in later years.
Putting the rubber onto the road and shoe leather on the ground at salvage yards was the order of the day, no matter WHAT Chrysler product you were looking for parts for. Lots of Buicks, Oldsmobiles, and Fords are still that way, or worse.
Happy NEW YEAR!
COBDY67
