Some of you are going to call me crazy!! Dual master cylinder

[burns]

I think you would be better off just running your pedal to the front brake and relying on engine braking for the rear. The back brake doesn't do any of the real work in stopping anyway. There will surely be times when you need a lot of pressure to the front but you don't want to lock up the rear. I think tying the two brakes together with no independence will make your bike an accident looking for a place to happen.