Thanks for all the suggestions. I never thought that the QS8s would be better on the side. I'll do that. For the M22s, would the wall brackets here from Axiom give them enough breathing room?

After I got my speakers, I like them so much that I bought my parents a whole set with the M60s in front.

I feel like this is my opportunity to the get M80s too but the room is not big. I'm also worried that my receiver (Onkyo 805) can't handle the M80s.