Sorry for the late response 69, but looks like you've sorted most of it out. You are correct on the lens cover clips and the brackets that hold the wiring harness. The three washers are used where the thin metal ground strap connects to the instrument panel.

I'm stumped on the last item. I've made a quick look through the underside cowl area and engine bay. I've got 5 brackets under the dash that are welded, and the 1 in the engine bay beside the door buzzer that is also welded. Most of my car is disassembled, so I'll have a better look around and see if I can find anything close.