The idea sounds simple, untill you here the details. Or maybe it's still simple.
A medium/long length truck, just a cabin on the front and a flatbed behind it. Simple, right? Sorry, that's just the description of the model.
The only way in, or to "mount" it as I've heard it called, is through the cab. Jumping onto the flatbed will not put you in the drivers/passengers seat. Just onto the flatbed. So, while only 2 people can get in it, or "mount", 10 more can jump on the back and move around.
And is it possible to be able to build on the flatbed? e.g, Can I build a small house on it and call it an RV or pretend I'm moving the house, and still drive away without leaving it behind?.