Jason, from Fairwheel Bikes, has started a Facebook page that is really worth following. On the page he posts photos of “behind the scenes” at one of the finer shops in North America. There is a lot to look at, so prepare to spend some time with Jason.
Is it a lefty or a righty? If Jason flipped the rear chainstay to the other side of the bike, it would make easier to remove the belt, don’t you think? But then there would be a lot of torque on the cantilevered hub.