66 Valiant Electrical Issue?

Wow! Thanks 67Dart273!

I know that I've been wanting to update the whole harness in the car (w/aftermarket speedo/tach and other gauges) but just don't know who, what, where to go because there is so much out there!

I'd really like to keep it as simple as I can. I'd like to be able to use the factory heater/switches, wipers, etc; yet run let's say an aftermarket speedo and gauges as I'm prob gonna build my own instrument cluster panel in the future.

The thing that really throws me for a loop is the charging/ voltage reg system. I see so many people running different things I just don't know which one would work best?? Gets very confusing sometimes, lol.