Go to Electrical updates/upgrades List

hazard/emergency flashers on cars without....
branded good quality country specific halogen headlamps and relays if not standard.
at a push a 40 amp denso...easier for me to get than a mopar alternator
with a mopar alternator do the police/HD update that relay controls the power into the regulator as a direct feed form battery
mini starter (denso again)
HEI with appropriate coil
strip and re insulate your ammeter studs fibre washers etc and make sure to lock glue, spikey lock washer the bolt on cables.
clean all grounds
clean all fuses and fuse holders

leave the rest alone, its the last 6 inches of each wire and its connector that causes the problem. under the wrap, the loom, if not burnt or hacked about, will be pretty much the same as it was on day one

Dave