[DragonLady58]

#1- The 1600 is just a lightly stroked 1500, all things being equal.
#2- The 1600, Vulcan Classic/Nomads engine will bolt into a 1500 Vulcan Classic/Nomads. Straight swap over.
Now, MAS might have more experience with meanies swapping to a Nomad, maybe you can change out the whole rear swingarm....that way you wouldn't have driveshaft issues....
#3- I just wire up a single stator, single regulator into the stock wiring harness, with -0- problems, but, to each their own....Don't have as much electric juice to power a ton of acessories as a reg. Nomad, but your driving lights, airhorn, radio in a batwing fairing, its plenty....
Just my 2 pecos....most times, building a bike and doing a custom bike, majority of the time, the simple setup is usually the best.