[PGSigns]

One thing I see is the fans hooked to what I think may be the field wire off the regulator. That may be a problem. If anything it should come off the hot lug on the horn relay. If you go to a one wire alternator the wire off the alternator would go tot he battery. There should be a wire from the battery to the horn relay. A wire off the horn relay to feed the fuse box. The power to the key used to come from the fuse box. I would run a wire off the switch to the coil and to a relay to drive the fuel pump.
Jimmy