I'll get pictures tomorrow during what little day light is left now a days but I just got some BFG TA KO's mounted on the stock wheels today. 285/70R17, stock size on the OffRoad Titan. Farking expensive compared to other sizes of the same tire, but I suspect in time the price will come down as more Titans are put on the road and the demand increases. But it definitely an odd-size tire which I suspect jacked up the price a bit.
Fitment is TIGHT. I can fit a full finger inbetween any part during full range of turning and fully unloaded to level suspension travel (i have "normal" fingers, not fat ones). Distance between the UCA and the inside of the tire is very close. Next closest point would be at the front lower fender area, again, a fingers gap at most. I haven't been able to look at clearances with the suspension as loaded as I can get it. Will have to wait for daylight tomorrow.
Haven't put anything over 1/4 mile on them between my place and the tire shop so I can't comment on anything other than looks and fit. They are snug inside of the fenders, but just barely. I suspect if I go AC Springs + airlift or OME suspension lifts there will be more clearance, but I think 285/70 is about it for us without rubbing or trimming needed. But again, I'll slap up some pics tomorrow.