[salvasol]

You got it

Are you using one or two rows of seats??? ... according to your system you have a 7.1 set up; so all your surrounds (4) can be at 6 - 7ft and the front (3) at ear level

Place your surrounds on the side wall between rows is using more than one, and the back surrounds on the back wall ... after you place the speakers, run the auto calibration to properly set up the system ...
and then .... start enjoying your HT