I knew someone with a trailer a lot like that -- except his had painted plywood walls. He was a laborer on construction crews and he went to where the jobs were and towed this trailer along so he could stay on the job site for free. He found the flatbed for free, abandoned on one of the job sites. His was smaller than this one, he towed it with an old Honda Civic, and I'm sure it was already more than that car could safely tow.
Eventually he earned enough money to buy an old travel trailer, but hey, if all you have is a flatbed and some plywood, it's not the worst place to stay.
