Joe if you like aeroplanes & trucks you need to plan to get to The Old Station Fly In & Heritage Show. As well as the fly in it has a vintage truck show & a vintage tractor pull. Sounds like you'd be in heaven.
It' held at Raglan Qld, just west of Gladstone & is usually the 4th weekend in May. Next year is the 25th anniversary of the fly in & should be a good one.