If you have leaf spring suspension, flipping the axles will give you several inches of lift. I have a Milan 18CK that I have flipped. Subsequently changed axles to Al-Ko 3,500# axles with 3" tube option (over standard 2 3/8" tube - I bent the stock axles) Was able to keep same spindle size so hubs and brakes were interchangeable. Also added Dexter EZ-Flex equalizer w/wet bolts. If I remember correctly I gained about 5" lift. It already had 15" wheels, so no wheel size change.
We go over some nasty desert roads so I also added a skid bar under the sewer connection and removed the rear stabilizer jacks and installed "Save-A-Jack" removable mounts. I now have LOTS of ground clearance and the rear is clear of anything that can be damaged if it does drag.
You may have to add a step unit with an additional step. Mine already had two steps, so not TOO high on that first step, but can get to be a pretty long reach with uneven terrain.