Electrical knowledge needed

So right now I have the car completely stripped of wire and just bare shell. Planning on stretching the harness and just adding wire from a universal hot rod kit. I am closing up the bulk connector and going to run straight runs through to hide as much wire as possible. But want to figure out what can be eliminated and what has to stay. The relay is what I meant just do not want it on fender for a cleaner look. I am not shaving the firewall just eliminating holes. Closed the insulation spike holes.