alternator conversion

Hey Y'all

Any info about ditching the "rare and valuable" original alternator with tach
drive for my bugeye?  How can I run my tach? Do I need to buy a new one?  What
type alternator works best?

Keith Turk says use a Delco and go straight one-wire to the battery, changing
to standard earth (- ground)

I've heard the Datsun (Hitachi) alternators are super reliable.

Any help is appreciated-

Billy