I don't have a picture of our full pit but here is a picture of our battery cart. Building something like this helps save space in the pit and keeps plugging in all the chargers and everything very simple.
All of the chargers are connected to a power strip inside so all we have to do is roll it in, and plug the power strip cord into the provided power. Doesn't take up much room in the pit and keeps things looking clean.
Just a note, the lid goes behind the cart in the pit, covering the wheels so it does not take up any extra space.
We'll be in St. Louis for champs. If you happen to be there, you can come check it out.
-Nick