LynxDK is working on a for-sale hornet UFC, DDI, panels and the other parts, see https://forums.eagle.ru/showthread.php?t=216683 or his site and instagram.
Here's Brun's UFC, in the form of an stl file that you can 3d print or pay someone to print for you, as well as a bill of materials for switches etc. https://forums.eagle.ru/showthread.php?t=218874
Jrsteensen et al. are working on full open source plans if you'd rather build yourself. https://forums.eagle.ru/showthread.php?t=200124