Eventually I plan on rebuilding the whole side panel where these switches mount and I'd love suggestions on what to do when we get to that step but for now I'm looking for advice on how to mount a couple of these new switches into this existing area. I thought about using the old switches but I'd rather replace what's been pulled for easy recognition.
Drill a 1/2 hole in the blank cover and mount it conventionally with a backing nut and a internal tooth star washer and the nut on top and snap the whole assembly into the switch console. Procure more blank covers for the switches that you are removing. A drop of Loctite on the switch threads will prevent it from loosening up in the future.
Linear Mode
