Mike,
Good, looks like you're close to having all the stuff. The hard part is two clips each side
that hold the GS beltline trim to the c-pillar. The factory ones just snap in, there is no
clean access to the back. You could drill some access holes to get at a different clip/nut type.
Do you mean the clips for the windshield/back window trim? Some of those have no studs.
Use a stainless screw with non-corrosive RTV on those.
Mark