Add Thread with second Sky Connect?

Hi community!

I use HAOS with one SkyConnect USB which is configured for Zigbee with Firmware 7.4.4.0 and that works great so far.
I have several HomePods 2. Gen for Matter / Thread but I want to be independent from WiFi; so instead of adding an Apple TV over ethernet, what is the best option?
Adding a second Skyconnect and configuring that for Matter/Thread - or is there a better way? A spearate device should be ethernet.

Thanks!
Str1atum