Home built, Trailer Mounted Cabin

?It is 7'x21' folded for traveling, and opens to a full 15'x21' once you arrive on location. It can be set up semi-permanently in less than 3 hours, and the axles and hitch may be either left in place or, if you plan to set it up permanently, removed. Either way, once it is set up there is little to no danger of it being stolen because it is no longer in a towable configuration. It just looks like a standard cabin. It can be towed anywhere a 4x4 pickup can go....It can be built for about $3000, or less if you can scrounge used materials; and it can be built at home on weekends, and a little at a time as you have money for materials.?