Hello vartsj,
I know not of what I speak, cuz I’m new to all this tech, but it sure seems like X32ReaperAutoMate would work well for your purposes. Have u tried it yet?

Also, it looks like you’re doing what I want to do. Do u use IEM’s? I’d love to know how your routing is set in the X32 & Reaper. Here’s my goal:

Thanks for any help… and good luck with your automation.