Mike, at the Acarian website, there's an older review from TAS on the Alon II. Some vague placement details are mentioned, might be a good place to start. I recently acquired a pair of Alon I mkII. In my small room - 9'x13' - they ended up 54" off the rear wall (9') and 32" from the side walls (13'), no toe in (although I plan on playing with that later). All measurements to center of speaker. My listening chair is against the rear wall. I think I'm within inches of optimum placement, but still experimenting. Right now it's soundstage city. The Alons really get out of the way and let the music through. Honestly revealing, very fast, great bass.
Good luck.....Erik
Good luck.....Erik