Hi Ed. Thanks for the comments...
Nice Job but it seems like a lot of space for very little gear to me.
You could have easily used a 4 space Effects size rack and easily get all of that in there.
Your right. At first I was planning to use a 4U, but like buying a house, it's better to have too much room than not enough. Where I have the canvas bag holding the microphone I plan for future expansion. I have an Icom IC-7000 in my truck right now. In the future I may put the Icom where the bag is or perhaps pick up a used 7000 or 706.
Also I would stick a Cookie sheet or Pizza Sheet in there as a Ground Plane for that Mag Mount in case you need it.
I actually was using a pizza pan as a ground plane. That gave me the idea to put a 22g steel sheet in the box affixed to the back Gator lid. In the video when you see the mag mount antenna it's stuck on the steel sheet I have bolted to the inside of the lid. This gives me a really good ground plane.