This member had a set of tire for sale, but I'm not sure if he ship's.
New OEM Tires for Sale $900
Use Tire Rack to get started. You could even go wider with 305's if you want. Using the same type of tires all around is best, but using different tires for the rear is acceptable. Just remember that there will be traction differences between new and old tires. Go easy the 1st hundred or so miles. Good luck!