The market for these is with guys that want a "full size" dual cab ute as there is no such thing in Aus anymore, now that we can't get the Ford F-Series due to emissions legislation. The 70 Series comes as either a Single Cab Ute or a Dual Cab Wagon. I'm seeing plenty of the Dual Cab Wagons being cut down to a ute also.
Dual Cab Utes here are the likes of the Toyota Hilux, Nissan Navara, Mitsubishi Triton and the Ford Ranger/Mazda BT-50. They're just not big enough for a lot of applications.
