New car- Upgrading from a jeep cherokee TD- to 100 Series?

Gday all, long and the short of it, am selling my xj as it has too little room after I installed all of my touring stuff- DOH! I am looking to buy a late series (2003 or newer) 100 series GXL TD. have 50k to spend, then a little on the top for mods.

The big question is how good are they REALLY?

I live in the bush, so need a 4wd. Have decided I'd like all the mod cons, so the 100 series wins over the 70 series. How does the suspension/engine/drive train hold up in the long run? am planning 6 weeks a year to be touring the far outback, including CSR etc, so will have LR tanks, wheel carriers, roof racks and the like.

What sort of fuel consumption do they get in the real world- keep in mind 95% of my km will be highway at 100kph.

Oh, I also own a 17 foot boat which is towed every 3 weeks approx 800 return km.

Thanks in advance!