Call TIRE BROKERS in Defuniak Springs on Hwy 90 West. They have all kinds of used scrap loader tires. Exactly what your looking for. You just have to find a way to get it or more importantly load it... Hope this helps, Good Luck!
just make sure it's the outside of the tire only-the big ones blown up can cause major damage-i know someone with brain damage from a truck tire explosion when he was putting air in the tire.