Hi Dave,
It looks pretty solid. I'll wait for better weather to see those photos. My E3 isn't that rusty, except for the hood, which is wrecked at the bottom, and the frame rails.
I was asking about the front fenders and the rear section because on mine, they went to the trouble of adapting E23 taillights and covering the front turn signal holes to replace the bumper with an E12 one. I don't know if it was to "modernize" the car, or because they couldn't find or import parts back then. It's a very rare car in my country.
My idea is to use older taillights, which are longer, so I understand your rear section wouldn't work for me.
Regarding the front fenders and hood, I'd like to see them in more detail, but perhaps because of shipping costs to Argentina, I'd prefer to order the pieces I need rather than the complete parts. I'm not sure how convenient that would be for you, though. The parts look to be in very good condition. I don't know if you also sell parts like the front bumper or the front turn signal housings.
I'm sending you photos of my project so you can better understand what I'm talking about.
Regards, Lean