Silvo,
Simpson is still closed, we just went out to Big Red from Birdsville via a big detour around a lake on the eastern side. Half a lake on the western side...
Prado V6 Petrol did fine, mate. Plenty of tug. Just had to let the tyres right down for the steep stuff. Eats petrol, though. Running around 23-25L/ 100km most days towing.
Carlisle