The Qs8's, not SQ8's \:\) , are very fogiving. Normally, you want them at least 2ft or higher above ear level when seated. Mine are 7ft off the ground.

The Paradigms Studio's are very similar to the m60's and m80's, so the Q's should blend nicely.

How wide is your back wall? 6ft spread should work, but wider might work better.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85