Charging circuit - reduced load on ammeter circuit

If you want to reduce the load on the inside of the firewall, just run an appropriately size wire from the positive alternator post right to the positive side of the battery. Right? Even though the ammeter won't read accurately anymore, you'll still know when there's a "problem".
Yep, and that us what I am doing. The extra wire is essentially a "hard to see" safety update for a "stock" resto on my car. If something goes wrong with my car, I sure don't want it to be caused by the ammeter circuit!!