Found another one on Ebay Class 4 truck a liitle bit more dollars though. www.ebay.com.au/OFF-ROAD-USA-BUILT-RACE-TRUCK_W0QQitemZ190134491917QQihZ009QQcategoryZ35236QQrdZ1QQcmdZViewItem
Here is a nice cheap one on Ebay for some body, pretty old though. http://cgi.ebay.com.au/OFF-ROAD-BUGGY_W0QQitemZ270149678138QQihZ017QQcategoryZ32626QQrdZ1QQcmdZViewItem
Or an even older one. http://cgi.ebay.com.au/race-vw-buggy-with-18r-toyota-motor-race-seats-mud-tyer_W0QQitemZ190135463927QQihZ009QQcategoryZ32626QQrdZ1QQcmdZViewItem
Found on Off Road year book 84/85 for sale on ebay. http://cgi.ebay.com.au/Off-Road-Buggy-car-classic-1984-5picture-book-Sydney_W0QQitemZ280139979085QQihZ018QQcategoryZ32082QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Heres a nice cheap car for what it is off RDC in the states, well worth a look for the dollars. http://www.race-dezert.com/cgi-bin/trader/atl.cgi?ct=2&mct=&md=second&id=10110
Now this is neat, but something tells me it would be one complaint away from being a class 4, still looks fun though http://cgi.ebay.com.au/Datsun-Nissan-180B-SSS-Coupe-Off-road-Race-car_W0QQitemZ180156802497QQihZ008QQcategoryZ102220QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Nice Sydney based single seater with trailer on ebay price starting at $15,000. http://cgi.ebay.com.au/OFF-ROAD-RACE-CAR-AND-TRAILER_W0QQitemZ120159923172QQihZ002QQcategoryZ35236QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
83/84 offroad yearbook on ebay starting at $9.http://cgi.ebay.com.au/car-mags-Aus-off-Road-Unique-cars-race-program-etc_W0QQitemZ130153194775QQihZ003QQcategoryZ1132QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
There is an absolute bargain on the race dezert classifieds a Meco class 1 or 10 car minus wheels, shocks and running gear and rear hubs for $8200.00 USD which is under $10,000 Aus and would land here for under $15,000 have a look.
Found another fairly cheap class one from the states would be under $44,000.00 Aus dollars to buy. http://www.race-dezert.com/cgi-bin/trader/atl.cgi?ct=2&md=second&id=18006