I need a 8R19.5. Comparable size would be 225/70/19.5. I need it used. I need it to only take me about 20 miles down the road. After that we wont be driving this anymore. I need it by this weekend. I have called many places and they have either never heard of that size, dont know where to find one or its way to expensive. I dont need a new one. I have checked Ebay, and they wont ship the ones I have found.