I love it!
I've always thought it would be really awesome to take a really small regional airliner from a boneyard and convert to a camper (bonus points if it runs on the original landing gear). It's more sturdy than 99% of campers on the road, good aerodynamics, well sealed, and would really get some awesome conversations going at camp sites.
Cargo hold will be storage, fresh/gray/black water systems & furnace etc. Windows are already there with pull down shades, insulation already there. It would take some sheet metal know-how & work to patch where wings & tail were, then make custom beds, cabinets etc. Keep the first class seats for passengers, mount up a hitch where nose gear was and off you go!
But that would have to be a project of passion bc boneyard aircraft are still very expensive unless you have connections to get one at scrap price right before it goes to the shredder.