Snuck in a couple hours of work on the cooker today. Didn't get as much accomplished as I would have liked, but I did get the firebox door edging welded on and got all 6 of my air intake spinners attached and functioning.
Forgot to get a pic of the firebox edging, can do that another day.
Two of the air intake spinning plates are installed and working.
Here is close up shot of the spring loaded contraption I came up with to hold the plate open. First you have the bolt that goes through the holes in the firebox and the plate, then you have a flat washer, a spring, a nut, a lock washer, and another nut. This was just to show what it looked like, I actually tightened the spring almost all the way down to get the plate to stay open.