After you try 11flat6 advice, if i doesn't help I'd agree that omnis are the way to go. You might only reach an 8.75 of your dealer perfection of 10 - but you'll never reach 10 with the room as it is now. 10's are only for treated rooms in my opinion.
Still with Dueval or MBL (only omnis I've heard recently) you can be glued to your seat and be really satisfied with music (which is what we like to pretend it's all about, right). I grant you that it's hard to change direction if you feel that Nirvana could be yours after all your work to build this system; but you've got a mega-system in a compromised setting, so it might be better to recognize that doing justice to the room is more important for satisfaction than putting together good equipment. Particularly since you are working at an extremely high level of equipment matching and it's not making you happy.
Still with Dueval or MBL (only omnis I've heard recently) you can be glued to your seat and be really satisfied with music (which is what we like to pretend it's all about, right). I grant you that it's hard to change direction if you feel that Nirvana could be yours after all your work to build this system; but you've got a mega-system in a compromised setting, so it might be better to recognize that doing justice to the room is more important for satisfaction than putting together good equipment. Particularly since you are working at an extremely high level of equipment matching and it's not making you happy.