Here is how it looks all assembled. I had no real problems when I assembled it. Everything fit perfectly!
After testing the scooter, I realise that this beefy motor bracket acts has a heat shrink! I was amazed to see that the heat was transfert to the side of the scooter, I remember the first time I touch the side, it was pretty warm. This pretty good new. I am also planning to have a fan attach to the motor to give better cooling. I am making some fan design to test it out.