Wiring solutions

Hi everyone on restoring my 73 scamp I am at a loss for figuring out wiring and how to plumb it all in so need your expert advice.
The plan is to keep the wires hidden under the hood and run in conduit through the fender well. Most of the wiring is in pretty good shape but would rather replace it all thinking that would be best.
Simple set up no A/C or power windows and plan on putting the battery in the trunk and the starter solenoid under the dash or in the trunk..
HEI distributor and gonna run electric fans on the radiator.
Painless Wiring is one option I'm considering and got in touch with Street Rod elec. waiting for a quote. Any ideas would be great.