personally I wasn't that big of a fan of the shed. The imperial system is so weird and non-exact compared to the metric system. This is why you see the handrails being dumb up top.
As for prototype it is absolutely up for debate lol, but my goal is to get as far to one side as possible.
EDIT: I miscalculated the final length of the ride. It will be over 10000 feet long by the time I'm done with it. yay