i installed on the Huffy i actually had the jaguar at first but returned it the rear wheel just was not very sturdy.
The huffy build went pretty smooth once i made a front bracket for the motor. I have had a chance to ride a few motorized bicycles and My huffy has very little vibration.
Also i did not need to modify the brake dust cover on the huffy as i would have to on the jaguar
Pics are of my personal bike.
Personally i would purchase a install kit to ease in building as i can follow directions but a fabricator i am not.
My 2 cents anyway