Shoeless, as Randy said go with the QS8's - you will not be disappointed! Keep in mind you do not have to angle the Q's towards the listening position as you mentioned and have shown in your diagram. Just flush mount them to the wall in the best position your room will allow - generally speaking they do not need to be pointed at the listening position.

Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1