I was told that the 16x8's I bought off ebay would fit a new hilux, thou when I fitted them with the 285's they are close and had to do some mods to make them work.
With a 265, they would've been ok. They are a -5 offset.
I reckon you should get something between a +10 and the stock +30 that'd work well.
My mate had the Prado 17's on his hilux with 265/70x17 and I beleive they were the stock +30 offset and worked well.
Thou with the 8inch wide rim instead of the 7, you would need a different offset.
Ive heard of some shops that fit 285's with 3" lift that run 16x8's with a -12 offset.....dont know how that works coz thats 7mm more negative than mine and the tyre would stick out even more.
Yeah, messes with ya head. Theres a few blokes on here with the 16x8 and 265's that have worked, just send em a message and ask what they got.