Stacked light/fan switch

Hi,

I have a single-gang stacked switch like this in a bathroom. It does not appear that any of the smart device manufacturers make any stacked/2-load devices for a single gang box. So, I am considering getting a 2-output Z-wave relay like this.

I could stop there and just use the switches, but I don’t like the look of a regular old switch for an “ensmartened” switch, so I was considering purchasing the Lutron Maestro device which is actually meant to control light and fan (I suspect this is for a traditional ceiling fan, not a bathroom exhaust fan).

So, before I go forward with this, can someone help me cross-check this plan and make sure it makes sense? Will I be able to wire in everything correctly and control it via Zwave as I aspire to?

(sadly, the Lutron device isn’t compatible with my Caseta hub, otherwise that would have solved it all)