1 wire alternators
There is NO advantage to a one wire alternator. It's a smoke and mirrors thing done by schmucks. The low speed ability to maintain your battery is extremely diminished. Notice I said maintain. It's not the job of the alternator to charge your battery, it's job is to maintain it and operate your vehicle systems.
In my job I build a lot of "lawn art" and one of the hardest things to do is give the customer a charging system that will keep up with the 500 amp stereo, air bag pump, a/c blower, dual electric fans, fuel pumps, engine management systems, et al, while they cruise around the fairgrounds in 110 degree heat at 5mph. I currently am using GM CS series generators with their diode packs intact. I am also playing with some Denso alternators on my own projects for my own twisted purposes.
I guess my point is that you can "clean up" your wiring, but don't shoot yourself in the foot doing it.