Engine wiring harness question / discussion...

What have you all done in a similar application?

I have a 69 Dart project. Call it a “restro-mod” for lack of a better term. My question(s) pertains to engine compartment wiring.

I have a repo head/parking light harness in place.
However, the OE charging system will not be used as I have a one-wire alternator. The ignition is all MSD.

I also will not have a wiper motor in place.

Thoughts?
Suggestions??