This is a really nice build! I'm setting mine up very similar (2.5" in the front, 2" in the rear), have a set of Method 305s on the way 17x8.5, 0 offset and I'm looking at the Cooper AT3 XLT in 285/75r17. I have a few questions for you if you don't mind.
How do you like them so far?
Did you have to do the complete norcal trim or just tie the felt liner back, or anything at all for rubbing?
Do you take your truck off-road? Can you get full suspension travel with those tires?
How have they affected your mpg?