Five years ago my friend, Mike converted a cargo van into camper van. Over the years I have helped him modify it as his needs changed. A year ago he converted his kitchen to all electric and uses a solar charging system/battery bank/inverter to power his induction burner, instant pot, and microwave oven. His former build worked, but it was very inconvenient. Mike asked me to help him modify that old kitchen, but I felt that it would be better to completely redesign and build a new cabinet for him. He did not want a sink, as he uses other methods, and the sink just took up space.
Mike agreed with my plans, and the photos below illustrate that process. Note that this cabinet was built for functional use as opposed to style. Driving down a road is not dissimilar from having the cabinet experience a small earthquake, mile after mile. See below.