We bought a used slide-in truck camper years ago when we were young, and it was owned by a couple that was getting divorced and it was 'gently' used. It fit in the bed of our pickup and had the fridge, stove, flush toilet... basics that are necessary for comfort. We now have a "pop-up" slide-in that is lower profile, as we often go on dirt back roads and camp in areas with low hanging trees. You can find some possibilities on site like Craigslist, but beware and use good sense when considering one. Don't ever trust what the seller says, see what's in front of you and use your good common sense.