You have your prep area and the dish pit in the same room and storage as well?
You need to move the dish pit to the side so people don't have to turn the corner to get to the triple sink.
Next, 8 foot wide is enough for hot side on one wall and cold side on one wall. You put the sandwich prep on the hot side as far from the sink as possible. That will not work.
I would put the dish station on the outside wall, the drive through wall. I would shorten the...