Reply to Possible to RUn TWO s2's??? HELP

So Me and my buddy are trying to start a side project together as a Duo. we both have s2's. I was wondering if anyone knows if its possible for us to run 2 laptops and 2 s2's ? he controls his and i control mine and mix together what we are each doing individually. My thought was two run each of our individual set ups through a two channel mixer using its crossfader to mix and switch between what he's playing and what I'm playing, like a rane 61 or 62 for example. Is this close to possible or am i dreaming?

If this is possible is there a better way of setting it up rather than using two s2's? any advantage to each using an s4 instead?