Virtual Dj, Pioneer-Ergo & A&H Xone 92 as External Mixer

Yo!
Just laid my hands on a A&H xone 92, and I also got a Pioneer Ergo for my bedroom setup.

So to my question, does anyone have knowledge about using VD and a external mixer? I still want to use my Ergo as my midi controller, but be able to mix my tracks together on my x92.
Any idea what type of external Sound Card for my PC that will suit this setup?

Thanks in advance!

You'll need a minimum four output audio interface (for two stereo channels on the mixer). I suppose in theory you could still use the ergo for transport (deck controls) if there's a mapping.