I'm looking for a thermostatic valve + diverter + volume set of
knobs in matte black. I'd like three identical looking knobs with
identical trim. For some reason, every single manufacturer makes the
thermostatic valve trim huge, and then the other valves tiny and uneven.
it just looks untidy.

Something like this Vola

Three, nice even knobs without excess adornment. But crazy pricey - $2700 once you add in the thermostatic rough.

Ones I don't like?

1. This Brizo is your standard volume/thermostatic combo. Looks ungainly and inelegant.
2. And when you add a diverter, it is worse - you have this huge thermostatic valve and small diverter.

Any suggestions? Under $1500 ideally....