Well I said it would start this thing in the next few weeks, but I got a wild hair tonight and headed to Home Depot to get some supplies.
I'm only about three hours in, but I've got the frame 90% finished. Perhaps tomorrow I will get the rest of the frame finished and squared up.
Next will be to start the center partition and the door panels. Then finally a hinged top.
Stefan B over in this thread had the same idea that I had bouncing around in my head. I'll take a few things from his playbook and incorporate them into my design as well.
The photo below shows the framework. The section on the left will hold my 22" WSM. The section on the right will be enclosed storage. The two sections will be separated with a piece of plywood. The whole rig will be on a nice set of locking caster wheels.
I'll keep posting to this thread as the Weber Smokey Mountain Cart Enclosure Project progresses.