Since you are not towing the Jeep, it is your only way home, I would get a decent all terrain tire in a more moderate size like a 30x950R15 or smaller. This will keep the down shifting to a minimum when you get to the really big hills and you will be able to wheel some when you are there. Don't put on road tire and haul those heavy off road tires with you, that defeats the purpose. If you want to push the envelope and wheel hard when you are there, get a tow rig and tow it. If you insist on bringing your heavy off road tires but have road tires on for the trip, then maybe a small utility trailer would work.