I finally got all the holes in the prototype CB panel filled with breakers. After doing so I gave it a good look all around and everything looked good.
Because the CB panel sits on the left side console in front of the throttle quadrant I wanted to check for any interference during operating engine controls. All the controls moved fully forward without coming close to interfering with the CB panel. In real life probably none of the handles will come that close to the CB panel as the cables and their items they control don't require that much trave. But at least they are tested to the limit. I have a total of 18 breakers in the panel and since it all looks good I will plan on cutting the CB holes in the actual console panel.