Assemble, and match drill parts.

If you are going to put in a tunnel access plate this would be a good time to do it.  I waited until later, and it took a lot more time, Airward makes one specifically for the side of the tunnel. See post: Right floorboard arrives & tunnel access panel

Form the control support.  Lots of cutting and filing to get it right.

Primed, reassembled and riveted.