Weren't you around then?
I thought the solution was minimal to providing an opening trunk. Agreed the build quality left a lot on the table. And in the ditch.
Compare the tube frame alone with the flying buttresses of the GTI W-12 650. Then substitute JulianEdgar's extruded aluminum in the center section.
Teardrop external hinges are an OEM part from the 1930s. Not sure I'd recommend #4 to someone under 21.