I have changed the old switches with new (F4) switches so I am familliar with the electrical system. There is really not much to be saved by taking wires off the stock harness. Most of the harness is under the tank therefore out of sight. Also all of the wires are needed. Your best bet is to relocate the battery under the engine and free up the space where the batery and airbox resides. This will give a clean cafe racer look. You will need to make a batery box and use a smaller battery. I use the one for a Yamaha R1. The regulator can be relocated to the batery box so that will clean up the right side of the bike. Just my own opinion.