Take a measurement from your current tires to any potential rubbing point, at full lock left and full lock right.
265/70 will add 6.5 mm to your sidewall height and the extra width will move the potential contact point out 5mm. This should be OK but need to measure to be OK
285/65 will move everything again by 13mm and 10mm, my understanding is that this will be pushing it even with a suspension lift. On stock suspension i would expect a good bit of cutting and trimming required to prevent rubbing. For 285 width you may also need a wider rim than stock to fit the tire correctly.
Another option to look at is 265/70/17, BUT again need to measure and check 1st for potential rubbing issues.
Another point to consider is that fitting a tire of increased diameter will lengthen your gearing and reduce acceleration ability. Also adds additional un-sprung mass.