We always wanted to build a microprocessor for a long time. Because of the availible time, we started to simulate the whole processor in the software "Digital". Our architecture was strongly inspired by Ben Eater's work. After many hours of KiCAD we finaly were able to order our pcbs at JLCPCB.
https://jlcpcb.com/RAT
Amazing project! Did you share the kicad file anywhere? Would love to order one Thanks