I decided to hack the $38 MCP about to make it more Collins-esque and to get a bit better at Fusion360.
I'm using green MAX7219s with the displays on flying leads which gives me a lot more flexibility with layout.
I've printed new button caps for the KD2-22 switches
That's given me room for a proper vertical speed wheel
and a combined bank angle/heading selector
Lots of frustrations, and I *loathe* Fusion360, but I'm now about ready to start soldering 😎