Just ordering some Method rims 401 bead locks and Tensor tires. I am going up to the 15" rim. But which off set is the best. I think they only come in 15 x 7 with a 5 +2 or 4+3 off set. I want to be able to rotate from the front to the rear. The Tensor tires will be the 30 x 10 x 15. Any help would be greatly appreciated.