here is a older fair shape office construction trailer,   it is old   does not appear to leak, ,  the unit is listing cheap and it a good buy for someone to use as a construction side,  hunting cabin or what ever,  the tires are old and dry rotted but seem to hold air,  since the door is missing,  rain has gotten inside of it and the floor is rotten which I show in the picture,  this unit is listed cheap and would be an easy fix for the right person,  it is approx 24 foot long  and 8 foot wide,   the front looks a little rough because of the paint but the other sides look real good,  the inside looks good but the floor is rotten right the front door, I think it must of been left open when stored,    this is a dual axle but I think  you could pull this unit with a 3/4 ton pick up pretty easy,  unit is sold as is ,

this unit has two offices one very large office and a smaller one in the back,  it also has a bathroom with a sink and a spot for a toliet but the toilet has been yanked,    I found these on a deal grabbed one for myself and it turned out excellent for a office trailer,  this one looks like it can be fixed easy with really the floor and a toliet if you want one in it,  I would of taken this one but I dont need a toilet but it looks to be in better shape than mine, 

  if you want to check it out give me a call.  good luck and thanks for looking, 816-806-8732