Stock wiring is a very simple in the engine compartment. If everything on the cowl is staying? There is really only 8 wires needed. Left and right turn, high and low beam headlights and parking light. Horn, generator and ign coil. Make it yourself out of the wire kit that you have. I also used cloth friction tape to bundle the wires to get an original factory appearance. The rear lights are even easier, just 3 wires and the chassis as a ground. I purchased 4 wire silicone jacketed extension cord wire and ran it from the cab back utilizing the original wire supports.
Good Luck in your endeavors!
Jim
