Just put the turtle in a corner and call the script (first argument diamater of circle, second optional argument to go left first (just "l" as argument), or to go right first (anything else))
Coronus, you can theoretically have two controllers if you use dark cable and always have one off and one on
there was a concept for a public ME network on the ftb subreddit the other day that worked like that
if you were really really ambitious and swimming in materials, you could maybe use enderchests with storage busses. One set of chests at each location, each location with it's own ME controller and set of storage busses.