I think that's a great set-up. I camped over the weekend with big group and one guy had used that size tire/wheel for expeditions; he recommends the Cooper Discoverer S/T for a good all-around tire. Cooper makes many of the esoteric Jeep boutique tires like Cepek and ProComp anyhow...
The 255/85-16 appears to be the perfect tire for the 2-door though. Both the Rubi and Sahara come with tire/wheel combinations that promise a 32" tire; the Sahara's 255/70-18 is barely more than a real 31" however and the Rubi's is scarcely larger.
But the 255/85-16 tops 33" from almost every manufacturer. It's not wider than stock and doesn't change the OE contact patch; no increased rolling resistance, no spacers needed, and you usually don't need any lift --- urethane spacers or 1" BL if anything.
BFG Mud Terrain T/A KM2
Toyo Open Country Mud Terrain
Cooper Discoverer ST
Interco TRXUS MT
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