Guess who designed and built that case in the picture? Yep.
Any similarity between my "wide" mining tray and your rack size design is co-incidental. Mine is a natural evolution of my "wide" tray, but deepened/narrowed to work well with cheap server PSUs.
My case works great and mostly keeps all the mess of cords contained. A lot better than 20 of these strewn across the floor in my home office. Thanks again Spotswood.