I don't think a lot of things are really suited to the flying theatre ride system though. For things like a motion pod simulator or motion seats yes, but as I understand it for flying theatres its not about sudden movements like being dumped by a wave, nor is it convincing to squeeze a large theatre through a hole in the green room or the HWSW loop or strapped into a tailspin seat (Because fundamentally you'd have 60 people staring at the inside of a Tailspin OTSR that is like 10m high on screen.
The technique is footage with the horizon fairly level.
For me, its really back to basics to make this a success...Go over the 12 Apostles, over the Sydney harbour bridge, over Katherine gorge, over the Barossa vineyards, over the Nulabor ribbon of highway with trucks tooting. along the Gold Coast beaches, and yes conclude with a flight over DW.
Anything else is tacky. It's fly over Australia, not pinball machine through the DW rides.