With a 2" Suspension lift. How bigger wheel we talkin'?

[foilhatman86]

Just wondering, my D40 Nav noticeable sits higher than most Navs whilst only on 255s, so I'd say its had a 2' lift at least by the previous owner.
I'm looking at:
-a. Buying new rims with +15 offset with 285x75x16 just shy of 33s; or
-b. 275x75 on the stock 16' rim.
Hoping to hear thoughts and experiences.
Thanks.