Full Size Jeep Network

I'm planning to install TBI GM, I have two questions if someone is kind to help me with photos:

1 - Which solution did you use for the wiring passage that goes inside the interior compartment? Some pictures?

2 - Fuel line for fuel I want to use 3/8 rubber fuel injection pipe, pass it over the brake booster until it runs on the frame to the pump installed in front of the tank. Do you have any other solution? Photo?
For the return line I would like to use its OEM retention line, if this is sufficient as a dimension, or is it better to use the larger oem steel delivery line in size?

Thank you

What I did:
1) 2" Hole Saw. Once I had all the wires in I used a rubber grommet thing and a small army of zip ties. Bonus was I was able to easily pas wires into the cab later for aux power and lights and stuff.
2) I did this exact setup, I still have it now that I'm running FItech. I would not use the OEM return. It's 1/4" and probably too small and since you're running new supply line anyway why not run new return line anyway.

Sounds like you're on the right track.