I bought a 1972 Opel GT when I was young and dumb. I was dumb for buying an Opel with a Ford 3.8L V6 shoehorned in. I loved that car, in spite of the dumb engine. I was 19, and the car was glossy black with alloy wheels and shiny side pipes.
I got it cheap because the dealer was too dumb to realize that the only thing wrong with the overheating engine was a bad radiator cap. I replaced that and had no problems with it for 3 years.
Sounds like a fun ride! Mine has an injected 2.4 liter out of an Opel Frontera. I bought it 28 years ago in 1994.