Once I had the vectors I sent the CNC files to the MultiCam plasma cutter and watched the magic happen...
The plasma cutter sliced through the 3/16" thick mild steel plate like butter and in only a few minutes per piece the cutting was done. They all turned out perfect and require only a teeny bot of sanding to get rid of minimal dross. I suspect it will be a whole lot more work to grind the paint off the two pieces and also smooth out the welds on the corners.
I decided that the corners of the box are to be rounded which I'll accomplish by welding in a quarter section of pipe This meant I needed to make the sides a little thinner on the edges. While I had the plasma cutter all warmed up I also cut the ODYSSEY lettering.