I used the American 22 circucit,you're right it has a lot of circuits built in plus relays.I was concerned about the elec.fuel pump and I gave them a call and they said the circuit was set up for more amps.than what my pump required.

All my wires are run through the interior,trunk,headliner and kick panels.The headlights are the exception.I went to the hobby shop and bought a 1/8 dia.piece of spaghetti tubing and ran it through the panels,run the wire thru the tubing,slide off the tubing and bingo the wire is routed without being seen.Some of the wiring is routed prior to the panels being installed.My head liner was fixed thus ,the tubing was a time saver.