Keychron keyboards have the features you want (but they don't come with pre installed see through keycaps)

Im quite happy with my purchase, that said I had to send in my V10 Max for warranty service due to board failure after around a year... at least they swapped it to a new one without question

Although they don't include your requirement for a physical volume knob (sadly), Wooting keyboards are really built to last.

Edit: I see that they actually have programmable and hot-swappable knobs on their roadmap: https://wooting.io/knobs

Can you get to a brick & mortar store?

I personally like to try things out before I buy. What one person loves may be wrong for someone else.

That's my take.