I have decided that if I do the conversion, it will be to modify the front end to add on a "fifth wheel nose" to the body while retaining the original hitch, which means measuring for the clearance needed for the Jeep's body as it rotates through the angles of turning. Fortunately, I have one of those combination hitches with ball, sway bar, and load distribution bar connections, which sticks out a ways rearward from the Jeep. Still, it means I have to cut the space for the bed shorter to provided the needed clearance.
Right now, I have repairs to make. I just reglued the laminate on both of the cabinet doors. Next up is resealing more fixtures on the roof so it won't leak. We had a heck of a storm two days ago, and it appears to have held up well (resealed both tank vents and bathroom fan vent).