I have had a closer look at your rig, and I do have a few questions.
What is the wingnut thingy at the top of the tripod pedestal?
You are set up for occasional use of a second camera. How and why would you mount two at once? Is it about lens combinations or is there some other reason?
I need to get a ball head for my tripod. You have moved from Manfrotto to RRS. If your budget was tighter, could you have gotten by with a second Manfrotto head?
What is the voltage of the battery? Can the notebook accept that raw voltage or is there a transformer somewhere in the rig?
The rig as photographed looks a little low. Do you get more height just by raising the pedestal or do you extend the legs?
I don't use Pocket Wizards, but I did quite a bit of work with mobile radio systems in the Army. When you have the camera in portrait mode, does the orientation of the PW antenna cause any reception problems with the remotes? I would have thought the signal would be quite directional and cause issues with remotes to the sides of the camera. Equally though, the output of the PW might be sufficient at the sorts of working distances you appear to be using.