Instead of a group of people sourcing out a company to get ramps from, why not have the racers build their own ramps. You get to ride what you like, plus what everybody else likes.
I actually happened to be there, so I might as well clear this up: The guy who organized the race is also the owner of the company that makes the prefab ramps, so he had every right to use his ramps if he was the one pouring the money into the event. That being said, it was a big bag of fail. I think this version will be way cooler, though I'm sure that the homebuilt ramps might have some kinks of their own to be worked out!