Just mucking around with the program SweetHome 3D. I will post up the campers and trailers that we have to give an idea of what the characters have.
 
Just as a warning, these can be memory extensive and take a long time to load. And sometimes a "Website not secure" warning window pops up, but that is because the Java 3D is not being supported (until recently) that is causing this error. Just tell it to accept the website/java plug-in for it to accept it.
 
You can use the Dial on the upper left or use the mouse and cursor controls to move around. Area is tight so take it slow
 

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Just finished and de-bugged Ruth's and the girls' Box Truck Camper.  Enjoy:
http://www.hondosackett.com/3DCampers/Ruth%20Box%20Truck%20Camper.html

nice!

Almost a year and, well, I found some body building a camper like Ruth and Joanna's in the RPG. Though they use a smaller panel box van, this is more or less with what was done with it. This truck is about 14ft long, the one used in the rpg is 20ft long. Other than that, there is little difference between the two.
 
Their truck:

 
 
The details: http://www.data-cut.com/projects/step/Grumliner.html