We've had a Frontier Play kitchen box for 6 years. We don't use any dividers or shelves because the content changes depending on how large the group is. It's going to have a very different set-up on a GC trip compared to a solo Main trip w/ just the two of us or a 10 person MF trip.
Sometimes the PS stove will go in the kitchen box along with plastic wash bins. Other times, it's all pots, pans, and utensils. We use a 22'' x 12'' x 10'' box in the oarsman foot well for spices, oils, misc lunch cutting board, knives, and things that we need quick access to during the day.
My wife is the only one that can Tetris it all together in the morning.