I am struggling with the front panel setup. I need to align 3 types of components: push-buttons, potentimeters and 5mm leds. The potentiometers have a nut to fasten it to the front-panel, for the leds I have small plastic mounting rings. The push buttons would need to go onto a pcb, that I could mount under the front-panel with stand-offs - the height looks good to me: With this approach getting the leds mounted is complicated - not a lot of space and I would push the pins in millimeter perfect so that the led body would click into the panel mount rings.
I could also just mount potentiometers and leds into the front-panel and wire things freely, but then I have no idea how to handle the push buttons.