Here are those pics of my fender shields, hope you can figure it out enough to make a set. As you'll see in one pic the outward side that tucks in behind the lip of the fender wheel arch, has tabs cut and bent over a thin rod to give some strength to the whole skin. It's about the diameter of a coat hanger, I attached them with self tapping metal screws along the inside edge front to back and then sprayed it all with a couple coats of 3M rubber undercoating. The 66 220 they came out of had a combo of screws and a tab at the very top of the inner fender.