Another gas gauge problem

Man, yer "stuff" is kinda hart to read. I believe the answer is "yes."

I think what you want to do is................

Unhook the kick panel connector and the sender at the tank, hook a little power to the sender wire and see where it shows up in the kick panel connector

NO NEED to do that. That's what wiring diagrams are for

In the partial of the panel, the sender wire from the gauge is the bottom one coming off the gauge to the left, to the panel connector (the inline connector) and is "G4" which is dark blue, and goes to the kick panel connector.

In the partial of the rear harness, the connector at the far bottom left is the kick panel connector. You can see that "G4-18DBL" goes to connector terminal no1, at top right of the connector

You should be able to identify that wire there, ohm it from there back