If anyone's interested, I have just posted a POV video on You Tube of Abyss at Adventure World with the maintenance lights on in 2013 just after it opened.
https://youtu.be/0LrmircPc2E
The Video is not the best quality while on ride at speed outside, as it was shot on a small handheld compact camera (Sony HX-30V).
It was taken after the park had closed and it does show pretty well what is inside the building which is normally in pitch black when the ride is open.
Pete.