Have you been to the track yet and talked to the operators/owners?
Will they even be running a 'truggy' division?
I would feel comfortable bidding on the following items:
(some of these would need some upgrades and condition of engine is always a crap-shoot)
http://www.rcuniverse.com/market/item.cfm?itemId=795612
http://www.rcuniverse.com/market/item.cfm?itemId=795151
(I do not know the state of spare parts availability for the Jammin (Hong Nor) in the US though...research that)