Hello,
Also, dont forget that you have to have a restraint set up, ie dual belts with buckles, for the bed, which can withstand, I believe a 5000 pound force.
I added a nice used alumi-bunk 72 inch aerodyne, to my F650 straight truck, by myself, and it turned out pretty good.
If you search these forums, another member provided a link to the website which has the exact regulations, which you can print out.
At first, before adding the alumi bunk, and getting a different box, I had the idea of making the front 6 feet of my 28 foot box into a sleeper compartment, and I was trying to figure out how to go about making a bulkhead strong enough, should any dot officer find a way to test the 5000 pound force rule.
Scott