cobrakiwi
Can't get a picture to upload this am for some reason, but in your picture it would be the triangular square tubing reaching from the upper rear hoop area to the far rear corners on both sides. Look closely at the trunk picture, enhanced, you can see the carpet/trim is attached to the inner quarter panel and not pushed forward (IE: covering) to where the square tubing should be located. Nobody I know who would go through the process of installing an aluminum body would forget that type of support for the rear body...
Mikeinatlanta,
To be specific about the bet, we are talking about the main body and not the hood, trunk, or doors. If so, I'll take that bet
Bill S.