I'm looking at purchasing a new 2010 Jeep Wrangler Unlimited Sport. It comes with 16 inch rims with 225 70 16 tires. Can I swap those out for the 17" aluminum Jeep wheels with the P255/75R17 OWL on/off road tires that are on the upgraded Sport models? Do you have to do any modification to the Jeep or will it accept those without any problems. And what should I expect to pay for 5 of those tires and wheels from the dealer? Thinking maybe I'll just get new tires and wheels from Discount Tire. May be a lot cheaper. Thanks for your feedback!