One the RV reaches that price point level you are purchasing the unit because you have a specific use for it...be it for parts, to rebuild, or as you list, for short term enjoyment. A good friend once purchased a very old MH and "armored it up" for a road trip on the Old Alaskan Highway. When you are through, at a $3000 price point you could try a resale for the same price, after all there is no more depreciation. You could donate, even locally, as a local Boy Scout troop might want it for equipment transport, same for the local high school for Band equipment. Don't know about your state, but in California you might even get something from the AQMD for getting it off the road.
Enjoy