The regulars on this board will be sick of having me show-and-tell agian, but here is my casserole storage, in a deep lower drawer:
The drawer is a Blum tandembox metal and melamine drawer, from Ikea. The dividers snap onto the rails in any configuration you want.
Custom wooden dividers could probably accomplish the same task.
My loaf pans are on a shelf above my oven (I keep my tray storage in a base cab). Sorry, can't help with the beadboard.
Will a 30" drawer stack be enough to hold all your pots and pans? It depends on how many you have. I have all mine in a 30" stack, except for my cast iron fry pans and dutch oven, which are in a shallow drawer under the oven, and my seafood kettle, which is in a cab over the refrigerator. Be sure to measure your tallest stock pot to see if it will fit in the deepest drawer.
Q