Sooooo i just pulled the trigger and got the 245/65s and just like you i went with the all terrain goodrich ko2s and i can confirm they do fit the gator backs with no rubbing on my big bend on stock ride height
my fleet manager is aware of the situation, also recommended me to go to a different store. it seemed like the guy at tire kingdom just didnt want our money...
https://www.broncosportforum.com/forum/threads/big-bend-stock-height-with-bfgoodrich-245-65-17-the-beginnings-of-making-this-into-what-i-want.5033/
heres a big bend on factory ride hieght on 245s
got yelled at today at my local tire kingdom for trying to order a set of 245/65/17 for my big bend. even though I've see multiple posts of people running the 245s on the big bend on stock ride height can somebody reassure me for my sanity that these are the correct Ko2s other owners are...