Hi Shawn, looks good. Whilst you're focusing on inputs to the sim rather than outputs, for the tacan and ils panel it probably wouldn't add much extra time to put one of those MAX7219 4 Digit 7 segment displays behind. Even if you didn't wire it up, it would be there for the future if you then wanted to and would blend in with the panel.
Coloured padels look fine. I've been looking online for switches for this panel and they aren't easy to find or come by.
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