Australian 'Smart' Wall Switch Replacements

I know there’s lots of threads on wall switch options, but after reading all of them over the last few hours I haven’t come across something that will suit my needs.

What I’m after is a wall switch that will suit either wireless or single wire (but always on, no relay control as I use LIFX bulbs) installation. I’m happy to compromise on it not having an LED or state feedback (a simple 433MHz RF wall plate that I can listen for would be fine).

The tricky part is, I need them to be in the Australian dimensions to replace standard Clipsal switches.

My current plan (if nothing better exists) is to buy Clipsal momentary mechanisms, wire these up to a 433MHz RF remote that will hang off the back of it and use that with RF receivers around the house.

Am I dreaming, or does something exist? Ideally something like an Aeotec WallMote but the AU form factor.

What about Broadlink TC2 switch or any generic RF wall switch?
Since you don’t need state feedback

I’ve looked into those, as far as I can see they all have relays on the live wire and don’t have any other option to wire them up. I could disable the relay, but would rather not mess with internal 240V parts.