Here's what I can add.... The Estalon Aura uses a down firing woofer so it should play better closer to a wall behind it then a rear ported design. I've heard the Estalon Forza at a friends house and they are special. I'm sure the Aura will have some meaningful trickle down benefits from higher up in the line.
The Sopra No3 might be a great fit. They are known to really shine when given space to work and you have the room for that to happen. The Sopra's are front ported so while they do best with space to work, the space they need is more side to side and behind the listening position--they will work well closer to the front wall than most. If you take a look at a pic of the Sopra's they have a large midrange driver that has a separate cabinet enclosure that doesn't get clouded from the bass drivers. Good luck and cheers