I would go w/either a 2.5" BS or 3" BS, this way you wont have to buy new rims when you do an SAS. If it were me I would go w/a 10" wide rim over the 8", the 10's will flatten out the tire a little more when aired down. I know this is an area of debate over 8's holding a bead better than 10's, but in my experience and those I wheel with, we have found that not to be the case.
