Hi Kurt,
yes. The workshop which did the work to this point, took it off.
There were 2 tags, as it should be, according to your research. One for Germany, too. :-)
I only have a picture of the non-German one:
The car's history is more or less known.
Only 2 owners are stated in the "Fahrzeugbrief" (German title). Either the same person twice, only two different addresses (normal procedure when your address changes) or father and son, with the son having the same first name.
The seller told me the car was used first by father, then by son, which would hint towards the latter option.
The car allegedly was used as a company car for a bakery, of which the guys in the title were the owners.
After the son seized using the Camaro in 1982, allegedly some of the staff of the bakery wanted to restore/repair it. They started disassembly.
I have seen pictures of how the car looked when the workshop got it in 2014: All the underbody and the subframe, complete with front end and the firewall with heater box, was painted bright red. Just sprayed over everything....nuts, bolts, bushings.
I assume, that this was part of the "restoration" work those bakery dudes did.
Allegedly the lead bakery dude lost interest at some point because he became too old. So the car sat high on a lift, dry from 1982 till 2014.
According to the seller, only the rear lower quarter behind the right wheel well, both rear wheel well lips, the rear window frame on the right side and a spot on the lower B-pilar needed welding. I have seen pictures, taken during work, that proof that. Also looking at the car now, this appears to be correct. The front fenders also were very rusty, so they replaced them with reproduction fenders.
The "mileage" of this car is documented by a fully stamped "Scheckheft" (German maintenance record book). All services done by an Opel dealership, which was the usual way to do it to those German/European US-GM vehicles.