I like to think I get most of what you're trying to achieve by putting the shelter/water in the best fixed location in each paddock for my sheep. Typically it's a spot high on the landscape. I'm moving my sheep every few days so there is rarely a detrimental impact where the shelter and water are. However, I've only got 20-60 sheep moving around. It would be nice to have a robot water tank that could move with the flock and go full itself though; maybe mine some Bitcoin when the sun is shining good too.