2 Powerstations for Wet (Stereo), Dry, Wet (Stereo), Possible?

Hi Wally and welcome to the community :tada:

Your first hypothetical setup seems to be Wet (mono) Dry. For a Wet-Dry-Wet you need three power amps; there is no other way around it.

Take a look at this video,

There was also a recent discussion about this here, that used one Power Station,

Hope that helps; let me know what you think, and we can take it from there.

Regards,

Dan