Ammeter bypass
Wow, it's not that hard. Get a meter and probe the wires. Theres a fat red one from the bulkhead to the battery, and a fat black one coming from the alternator to the bulkhead. Those go inside to the ammeter. Those are the ones they want you to bypass around the bulkhead connector and run thru the firewall inside rubber grommets. Go get a nice laminated color schematic from
www.classiccarwiring.com
As far as a 1 wire "tractor" alternator goes, your on your own.