Man, that would be a awesome trip if you drive it! If you are coming through Memphis I have a parking area to do some work along with a few tools. Memphis Equipment is near by and we have a CAT dealer here as well. If it comes down to replacing the tires check out " Recoverable Materials " in Alma, GA they should have some good 14.5s but even better they will have 395s for a good price ( $50-$100ea ) and you will drop some rpms when running at speed. It is easier changing combat wheels than split rims, make sure you get so extra o-rings ( always carry spares ) and valve stems just in case. Also the CTIS is notorious for going out so some big bolts and caulk to fix that problem. Good luck on your trip and take pics!