So far, this:
http://www.conestogaspv.co.uk/...enger%20vehicles.htm
is the only website that I have found that may actually sell these items, however, once again they are foreign based (Great Britain in this case,) and I don't know what would be used as a means of overseas transportation from their location to mine (Pennsylvania.) From what I can tell though, I'm assuming it would be possible to purchase the trailer bus trailer component, and then hook that device up to a regular Class A Semi-Truck Tractor from right here in the states... or am I wrong???