Just a quick update. While I haven't pulled the trigger and purchased any tires as yet my research led me to this tire. It's a Kenda Klever H/T 4S, this size is a 235/80R18, which will accomadate a 6 inch rim width. The tire is 10 ply and load rated E at 3297/2910 lbs. single to dual mounting. While a radial tube may be required for my use it should suit a standard drop center rim just fine.
https://www.tiremart.com/shop?sizeAll=235%2F80R18
