Hey, what a coincidence. I did exactly the same with my bike, the cutting and welding process, the rear freehub with the spacers, the 55 teeth front sprocket, also the black and blue color, and obviously the centertrack gates carbon drive.
I have a problem though, I am riding my bike without the belt drive system (with a chain), because I can't find a crank. Can you tell me which one did you use?