So far, I have installed underbody panels, grill blocks, read wheelwell skirts, smooth hubcaps, and caulked all of the seams on the front and sides of the cars. After the caulk dried I used a razor to cut a line on those seams (doors, hoods, gas cap cover) that I need to open.
i'm been trying to devise a way...maybe a clip system...
where you would have to lay down and reach way up to install/remove them...
The other day while waking up (you know those half dream / half awake moments?) I actually figured out how to do this.
I'm currently finishing my basement and I picked up a "pocket hole" kit for making strong, simple joints with wood. I used it to build a bookcase, and I'm also going to use it for a few other things.
Essentially the plan is to make a wood positive, or maybe a wood and bondo positive. I'll then make a mold with plaster of paris and THEN i'll make another positive with fiberglass. I'll smooth it out (with some primer and maybe a little bondo too. In 3 or 5 locations on the back of the fiberglass wheel skirt I'm going to put a giant gob of plastic epoxy. When it dries I will use the pocket hole system and drill a few holes that will be angled.
At this point we can drill a few holes in the car using the small half inch "lip" in the wheel well and maybe put those little plastic female screw receivers (usually used for mudflaps) into these holes.
Anyway, it's a lot process, but it should be hella fun when it's done.