I am not concerned too much about fuel economy but I am sure the 3 litre Nissan would chew less than my 4.2 Toyota.
Are there any bad things I should about the Patrol?
Get a 4.8 Petrol?
Bad things?
Not a lot that can't be fixed relatively easily; eg the pathetic reversing light,
The infamous 90km wobbles can be usually eliminated by quality tyres, good steering damper & finding someone who is very good at aligning & balancing.
My clutch went at around 100k. Got an Exedy Safari put in & was sweet.
One thing that used to annoy me in my patrol & our work trucks...
If the engine is working hard in hot weather, the older GU Patrols seem to like switching off the A/C for extended periods - Not sure about the later models if they improved that.
A bit outside your budget (and mine, unfortunately) but if the lotto comes good .....My mechanic has supercharged his Y62. It is scary fast. I would lose my license in a week I reckon, but I would never get the smile off my face