Honest reply, what amount you can get out of people. The Dingo is a bit of a specialist market, Jeep possibly worth more in parts. Bike has two markets, military and Motorbike. Decide what you want, add a thousand or so. If that seems a reasonable figure, then you have room to haggle. Would be worth seeing if the Dingo engine at least turns over, if not actually running. Otherwise the first thing a potential buyer would say, and if you were buying it would seem reasonable, 'All it is is a large paperweight'.