Just bought 4 Moto Metal 951's 20x9 wheels, 5x5 pattern. I have a stock 08 Sahara JK. My plan was to get new larger tires on these wheels, sell the old tires, and hold onto the stock wheels for later when I sell the Jeep. I was going to get a spare tire cover as well. What are my options for the tire size on these new wheels? Can I get 20 inch tires without rubbing? What is the max I can get?