Mate, i think with the reasearch that u now intend to do, to further your knowledge u will find that the probs with the patrols were up until approx 2004 models, but thats not good enough really, when u think about it.
For a major car manufacturer to have those sorts of probs with a model line like the patrol is a joke, that said, I owned a 2005 DI GU patrol, and had no probs with it, in fact it was an awesome truck, whilst it defo wasnt the fastest 4wd on the market, it went more places easier then the faster ones did, and the drive train is second to none, IMO.
I now have a new CRD patrol, and again IMO they are chalk and cheese in terms of performance, i tow my OB swanny and it does it wth ease, now i'm a bit biased, but if u want a truck to tour with, and go the distance, which i think is great value for money, (price range), then the patrols should defo be considered, oh and a real bonus is that u can actually 4wd with it, not like some, who like to break.
Good luck with ur research and buying, hope u get wat ur after mate.
Regards Swanny