How about Deavers for ride and travel, then some auxillary airbags for towing capacity?
The bags could either be on a floating mount that only contacts the axle at maybe 2" of droop, or even have the bags on mounts that can be removed easily with bolts or QD pins.
The bags could either be on a floating mount that only contacts the axle at maybe 2" of droop, or even have the bags on mounts that can be removed easily with bolts or QD pins.