100s LC standard for trowing

I'm sure this is probably going over old ground but I'm in a bit of a bind looking for a good long distance tow vehicle that can handle a heavy van and rough tracks. I'm not going to take the van 4wding but I'd like to get a vehicle that can handle itself in the bush (The current X-Trail doesn't quite cut it) I recently drove a 100s LC standard several hundred ks in the kimberly and was impressed by how stable the heavy body was over some pretty shocking corrugations. I'm not sure how the HZ105 motor would handle towing a big van though? Also, with a 4 tonne rig I'd be pretty keen for ABS brakes. Unfortunately a TD is probably out of my budget as I'm not keen to get something with over 100Ks. A GU Patrol might suit but again I've heard that the 3.0L is a bit underdone. The new Pajero looks like it has a pretty good engine but not sure how the lighter body would go on the rough tracks and the budget might not stretch that far anyway. The range of dual cab utes also seem good value for money and the even the new challenger might be worth a look. Any advice would be much appreciated.