I recently purchased a used pair of the Caintucks you are considering. My listening room is small,13'x9'. It is a dedicated listening room,therefore no restrictions by the mrs. I have them about 40" from the front wall, and the center of the driver about 2'ft from the side wall. This seems to work quite well to my ears. The music just floats! The soundstage is incredible, about 5ft taller than the speakers. Like you,I was a little apprehensive about the purchase,but again,they work very well in my room.
Good luck!
Ray