Hey fellas, I'm playing master auto electrician with my rear tail light housings and sorta wondering a couple things. Any wiring gurus hanging around?

1: What guage wiring is used in the plug-in harness and is there a source for that wire with the painted stripes (or something similar)?

2: in my workshop manual for the 71T is see a green and white wire running from one side to the other...is this wire a ground? I don't seem to have that wire in my harness.

3: I ran a multimeter thru the wires of the harness to see which wire went where in the 6-prong plug. If you look at the plug the top hole (where the guide is above it) and the hole just to the left of it's dead or no continuity from those holes to any corresponding wires. Should they be dead? The wiring diagram doesn't show anything for them either if I'm reading it correctly.