Alternator questions

[smokie]

I recently purchase a 71 C10 that was wired as a single wire however that alternator died and the only replacement listed is for a stock remanned unit externally regulated unit. The truck was "unfinished" in the way of no heat, AC, radio, etc. However I'd like to readd these things back into the truck. I have an optima blue top battery I plan on installing also.

Would you all recommend keeping a 1 wire alternator or switching to a 3 wire?

If so a 3 wire, how do I wire it in? Which amperage?

If so a 1 wire, which amperage?

Please include recommendation on the parts (Company, part #) if you can.

Specs on the battery:
Battery Type: Sprial AGM
BCI Group Size: D34M
Cold Cranking Amps: 750 amps
Cranking Amps: 870 amps


Thanks in advance!