Storage ideas - making a mobile storage unit?

I would say get a shipping container, however big it needs to be, put everything in it and look for a nice shop/house of your own. When you find a good permanent place keep the container for storage because you will fill your building up no matter how much bigger than you think you need it is.

 

I have built various types of beds that attached to tractor the same way a trailer does... Via the 5th wheel.

The beds had a king pin built onto the bottom of them that locked into the 5th wheel. And there we're 2 heavy metal tabs (for lack of a better term) that had bolt holes in them, that when bed was locked into 5th wheel aligned with matching bolt holes in the frame rails.

Camper jacks can be attached to the bed as a means to raise and lower it.

We used a loader to assist in hooking or unhooking the beds from the 5th wheel... But I'm sure another means could be used.

 

Some RGNs have top decks that you're able to drive around with detached from the rest of the trailer. Maybe look for one of those...?

 

I say use the 14 foot body you found.

Who cares if it hangs over the back a couple of feet. That's not going to bother anything. Look at how far a roll back sits Beyond the rear wheels.

If it makes you feel better put your heavy stuff up front. It's not like you're putting 30 or 40 tons worth of stuff into that box.

And you have a lift gate. You can't beat that.

 

It depends how much weight you're going to put in it.

Since those beds are designed to sit on a frame I would make a quick frame out of tubular Steel and I would do it in such a way that you sit up high enough over the fifth wheel so you can leave everything on the truck itself intact.

Then if you want to jack it up or lift it off however you're going to do it at a later point you could just set that bed up somewhere and you don't have to worry about it.

You can put as much as you want in there and enjoy the liftgate.

 

Smallest containers are 20 ft. They are heavy duty you could hang anything on the walls. The 14 ft w/ lift gate and jacks, sounds easier to do. Even some treated lumber as runners between frame and box would work fine. Bolt or chain it down good!!! Lol