Sounds way cool--and maybe I am out to lunch, but won't all that weight be WAY offset F vs R and probably represent 90 pounds of tire/rim even further past your heavy bumper and really far past the front axles? All that and mounting hardware = way overloaded nose by at least 200+ pounds. I feel your on road handling and IFS front end will not be happy either and your weight distribution awful. A full tank of fuel might help but I think I would go rear bumper with swing gate and some extra jerry cans be better? Plus, a better weight distro over the rear axle = less nosedive?
Either way please post pics and let us know