7 points
The only part that would be a bit exotic is the progress slider really, the rest should be fairly off the shelves parts. Maybe the slider can be LEDs or something instead to make it a bit simpler.
4 points
I immediately thought of those motorized faders on professional mixers. One of those mounted sideways would absolutely work.
3 points
Oh yeah they exist for sure but it’s a little bit more unusual than the rest and will drive up the cost. For example these ones on mixers are way too big so you’d need to get a smaller one made, etc, whereas the buttons I’m sure they’re ready-made in many sizes blanks that you can just press/print on, same for the LCDs you can find ones that are close enough to the correct size without making them custom.
