I took my factory 245/75/17's to Discount Tire, they gave me $320. I thought that was decent considering I didn't want to bother with craigslist strays and be low balled. IMO if you are going to have 20's put the plus size on. There are more options for better quality tires in the plus sizes. My tire is equivalent to a 32" tire being a 275/55/20. Take those low profiles off!
2012 WK2 Laredo Stone White, QTII, Leather, 20" Overland wheels, 275/55/20, All weather pkg, towing pkg
1942 Ford GPW Military Jeep