We have an Amarok, anyone that thinks these are not capable has never driven one offroad.
VW claim the Amarok will do a 1 in 1 grade with no throttle, they are also equiped with anti stall, trailer stability and Dynamic stability control, traction control, Hill Decent control and a rear locker.
They pull from 1100 RPM right through to 3500RPM, even with a load of wood in the back and a 1.5t camper in tow, we love our Rok, they do run out of puff around 4000RPM but by that time your doing 130kph
Down side is clearance, they need a lift and heavier springs, a set of 32s and it will go anywhere any other 4WD will.
Probably not suited for what you want though, sounds like you would be better suited to a wagon.
Baz.