Hi CatBrat,
The EP800 in its horizontal version could be inserted in a niche under your screen and it would give you spectacular and awesome bass.

I'm a big fan at sitting close to the screen. I normally find people sitting too far away, spoiling the large screen effect. I have a 16 x 9 - 151" diag. screen and I sit 14.5' feet away which I feel is great. On action sports, like hockey, I sometime feel that I'm sitting too close. Friends coming over to watch a game find it too close and move back one row. Your main sitting position at only 8'11" from your large screen, it might be uncomnfortable for action movies and sports.

You should seriously consider testing your sitting distance using the appropriate ratio.

jc