Don't bother, you already have almost twice the number of keys spread over the 2 keyboards, in addition combining them over Midi will give you way more layers to choose from. (Including key ranges per voice)
In addition you also have support for the 2 most popular style systems in use today, which means you have way more style flexibility than any Genos owner could hope for.
If on the other hand you want to combine everything into 1 instrument (With all the limitations that this presents) then compare the Genos to the PA4x & SD9 before making a decision.
Have fun which ever way you go.

Bill