In the US version the TOD computer is under the passenger seat so it would make sense that it's under the drivers seat in the jdm version. I believe troopers had selectable 4wd as well. Not sure the name for it there, maybe bighorn?
It's known as the Jackaroo. I priced the comp over here using a Holden code (8973194810 for those intrested) and its 912$. i am sure i could get it cheaper over seas or maybe from a wreckers yard.