Constant heavy charging
Might want to consider copying the '73 (to '75?) wiring for the optional high output alternators.
I mention that because the extra loads on the battery during start may result in higher charging currents for longer periods of time.
It basically consists of two heavier wires and a grommet.
That scheme is shown here:
Another Ammeter bypass question
This would be in addition to supplying the new equipment direct from alternator.