Looking into ways to ‘convert’ a wagon into a camper. There ARE some interesting products out there, eg these two: http://www.gizmag.com/ququq-van-camper-one-minute/28009/pictures#1 & http://www.youtube.com/watch?v=yMoUjjnZ5xE
See Also:
http://www.theultralighthiker.com/convert-a-car-to-a-camper-for-50/