I went out on a limb and decided to rip the hack job wiring all out due to the risky ammeter and bulkhead connections. I'll be replacing the bulkhead plastic connectors and sticking with the Packard terminals except for the power wires, which will pass straight through. Re-designing the charging system also. Eventually I'll rebuild my gauges and do a voltmeter conversion on the rallye dash.
I'm trying to figure out a way to install switched and constant power modern fuse boxes under the dash to replace the original one. Eventually I'll put a relay box in the engine bay for headlights and an electric fuel pump too.
Custom braided nylon looms will be used to make it all look nice. My car will be a mostly stock-appearing, pro touring kind of project (with a patina look until I start body repairs). A drive it as I fix it kind of thing. Wiring is fun for me, but tedious!