I just used a drill as a saw, and completely sawed off my rear fender at the exact point where it intersects the tail section / rear bodywork. I left a little more material in back, maybe an extra inch or two, and just rigged a bare bones plate holder out of the parts I just cut off. No license plate light, but cops don't care about that on bikes. It looks fine btw. Put a hugger on too. Also you might wanna try the Fender Eliminator kit, supposed to be great!
I have a fender Eliminator kit already but because my bike is stretched and lowered the plate still scrapes my bike tire when I ride my wife or daughter on it. My only option now is to relocate it to the swingarm.