Wizzy214, I use the Moose lighting coil, the threaded mounting holes are already are on my stator plate, however I did have to mill off about 4mm, otherwise the flywheel will hit the coil. I used the Moose voltage stabilizer and the Acerbis number plate that has two halogen bulbs behind a cool looking lense. This setup is great to warn oncoming traffic and for getting back to camp when riding late in the evening. however if I were going to frequently night ride or night ride fast, I would have to spend the big bucks on the oversize alternator, HID lamps and HID helmet lamp.
Let us know what you decide to use and how well it works. John