Installing the custom cabinets went very well and quickly. While there, they had me do a few other repairs and build an adaptable storage shelf.
The storage shelves were very easy to build. Just simple 3/4 inch plywood, but the shevles had to be sturdy and adjustable. Sometimes there was a need for regular storage, other times a shelf had to be taken out to make room for a tall kitchen appliance like a large tea kettle or stock pot. The easiest solution is to make the shelves in a french cleat style. As shown here.