Wiring harness tips and info please?

[767Jockey]

I'm restoring an old Contemporary Cobra. I'm at the point where the body is about to come off. I really only now got to get a good look at the wiring harness that's in there, and I'm less than pleased with it's condition. It's old, full of splices, etc. I'm thinking that since it's not a real huge expense, and the car is completely apart already, I might as well put in a new one. Anyone replace a harness lately? I'm thinking right now about Ron Francis or Painless. Any pro's or cons on either? Anyone else out there make something better? I can't tell for sure but I believe that the turn signal switch in the car is a VW unit. I'm most concerned about this as both websites show no compatibility with this turn signal switch control. I'm not sure how I would figure out which wire is which on the turn signal and how to adapt it to the harness. If it helps, here's the harness info I sent to the two companies:

-Car is Contemporary Cobra replica.
-427 FE engine with Carburetor
-MSD distributor with MSD 6AL box
-Main radiator electric puller fan (Spal high capacity single fan)
-Two pusher electric fans in front of radiator.
-I want fans to turn on and off automatically, with ability to turn on and off manually as well (need appropriate relay system)
-electric windshield wipers
-electric fuel pump (need relay system for pump)
-Volkswagon turn signal switch assembly
-60 amp 3 wire Ford alternator with external regulator
-electric fuel gauge
-rear license plate light
-no heater, air conditioning, radiator
-ammeter, not voltmeter
-I’d like everything to integrate seamlessly

Can anyone think of anything I missed, and anything I can be doing differently? I'm not real strong electrically, so having a clean sheet of paper may very well be the best way for me to proceed with this. Any and all input is greatly appreciated. Thanks!