Denso Ultra Mini Alternator source

I must not be getting it. Besides going down to one wire, what is the benefit to this? I have probably 8 good spare old MOPAR distributors, I say good because I tested the on my car 3 years ago, that I've taken off cars that I stripped so it's not like I'm short on spares. So basically I guess I am asking for somebody to sell me on these things.

Most guys want lighter weight higher output altenaters for electric fans, fuel pumps, sterios, whatever.
My idea is to mount a smaller altenater infront of the mechanical fuel pump, then mount a samll a/c compumper where the altenater was. May not be possible but worth a try. I'll probably need to delete the mechanical fuel pump and go electric so I've bought the delete plate already.
One piece I still want to play with is the heavy altenater mount from a 66 and earlier 273 ( foundation for the a/c pump ).