It’s a hell of a decision, I have been around 4wds for 35+ years now and the Japanese cars have always been the pick. I would probably get in trouble saying “i would buy a 10year old second hand Japanese car over a European or American in most cases”, so I won’t say it. 😅
My GX460 uses noticeably less fuel than my Pajero.
Personally wouldn’t look at the 300 with the 4.0v6. It’s too much car for that engine (like the 4.0v6 in the patrol)
the 250 series looks good, I think it will come with the 4.0 as a option as well. But will be a bit of a wait for delivery.
if you are going to look at a GX for off road definitely get the bottom spec one. You can upgrade the suspension easy and it’s lighter without the electric rear seats, and the ventilated front seats. KDSS has been around for awhile now and is actually a very good system, so don’t be scared off taking it off road by a E11 salesman. The minister for war and finance will love the GX drive.
Good luck