Looking for new rubber on my new 2017 F-150 xlt screw 4x4. 5.5 box with 2" level

Currently have 275/65/18 blizzaks on stealies
the rims I plan on using are 17x9 - Worx Beast 803 (currently have 265/70/17 GY Duratrac on them)

I really like the Ko2's and leaning towards the 285/75/17, but have the 305/65/17 and 285/70/17 on my mind.

305 height is good, but does the width rub? and I assume I need fender flares
285/75 - I believe the width is good, but what about the height?
285/70 - I think are good for both

285/75 are also $100 cheaper than the 305 per tire.

Anyone out there with a 285/75/17 setup? Also, I don't want to do any trimming