The exact same thoughts here and same reason for following this thread. Was considering just trying to make my own fleece roller with 3D printed parts, and some homemade electronics in a waterproof container.
I have a Klir setup in my rsf sump now. I have been unable to get it to fill up and trip sensor on its own (I think because water level is too low). But I do have it advance every 4 hours automatically. I am currently piloting this to see how it works