I really think you gone too far, let's see:
- you show something with knobs, them put buttons, ok I can go with that, I don't like, but we need to understand that it need to be small and portable,
- you show the worst LCD case, it only have a common pin, this is crazy, you will almost never use something like that because of the number of pins required, you need to a proper LCD, see the if the price is viable and only then go for a micro, so the search you made for the microcontroller didn't count,
- you show something with independent displays for V/A, then you end up with one, just by that you almost lost me,
- then that ugly thing with the leds, that you have to stop for a minute or tow to decode the thing, men, I could never buy it.
I really think you gone too far...
But you are in a excellent position, your work don't have to respond to anyone, you are your boss, you can do what you want