New design, more features. What do you think?
Is your design meant only to handle empty cans or job office conversions? For a proprietary company using cans as job site storage many times we move the can with the crew that has their tools in them. With the front power/steering unit in the front and being in the center, I see a problem with stability with a preloaded can and trying to position it where the steering/unit is turned 90 degrees or most likely less. As mentioned in a 2015 post we rarely have a pristine site to stage from so we would achieve this move by placing the can on a step deck at the extreme rear of the trailer about 40 inches high. When we get the truck to the job we will pull the can off the trailer till about 3 feet is still on the trailer set the nose down on the ground rig the back with chokers and pick it up and drive the truck ahead and set the can down. After that we use the loader and a choker to position it wherever it is going to go on the job (usually within 50 feet or so from where we unloaded it.
Your design seems sound and probably is for the techniques, conditions and terrain you encounter. This forum with it's global scope daily presents people, sometimes working to the same goal using 4 different methods and machines to arrive at the same result depending on their conditions. It is like the hydraulic motor driven chain roll off truck that is common to my experience in the Northwest and is shown in Intraxco's post #14. I find myself in New England and these trucks here that perform the same task, the operator has to pull off the line, hook up to the can and pull it on and then because the cans here don't hook into stirrups like the chain driven arrangement, the driver secures the can to the frame with a strap. The east coast guys will swear to you that you need that winch because of difficult conditions etc. The Northwest guy's are going to wonder why New England guys spend the extra money and have the driver on the ground when the Northwest guys just back into them, suck them on, tarp them and they are gone. The companies that run these trucks are pretty loyal to which ever arrangement they operate.
We are creatures of habit here and for years have bet our money on technique and machines that we know work and we were loath to change until maybe just the last 10 or 20 years. Technology like lasers, Caterpillar Caes, Trimble and Engcon to name just a few that have become increasingly more common.
Best of luck with your project!