Have you looked at the Totem speakers? Their floor standers (they call them "Columns") can be placed as close as 6" away from the wall and you can tune the bass by mass loading a chamber inside the speaker with sand. Totems are known for their great dispersion and broad sweet spot. The manufacturer claims they can be placed up to 12' apart.
Depending on how big your room is you might be able to get away with the Arro, in which case you would have a great sounding slender little tower that is only about 5" wide by 7" deep, and your sub can be used to provide some umph on the bottom end. But even their "bigger" column speakers are pretty small compared with the amount and quality of sound that comes out of them. High WAF too across the range if that matters to you...
Depending on how big your room is you might be able to get away with the Arro, in which case you would have a great sounding slender little tower that is only about 5" wide by 7" deep, and your sub can be used to provide some umph on the bottom end. But even their "bigger" column speakers are pretty small compared with the amount and quality of sound that comes out of them. High WAF too across the range if that matters to you...