Welcome to the forum! Unfortunately, finding the cabinet system or piece that you need in Hi. may be next to impossible. I might suggest that you make what you need if you have basic skills. My first Hi Lo had a damaged bath cabinet door and within a week I lowered and damaged the second one. Thankfully, I have the skills and tools and made new ones. You'll find a way! stick with it.
2703 Tow Lite
Bonita Springs, Fl. &