I would find it difficult to give up that open sound of a dipole speaker,I tend to hear the box of conventional speaker with sound akin to looking at a high quality photograph as a opposed to a more realistic presentation. With the size of your listening room my suggestion is corner horns. Mine are 18ft apart with a listening location about 9ft from the front wall and it provides an immersive, detailed sound stage with separation and depth more like an IMAX presentation. Is it more like live... probably not but studio produced music isn't live sounding either. Is it spectacular, by all means. each Nils Lofgren string comes from its own location in 3D soundscape.
For me also corner horns don't really take up living space a huge benefit over speaker that need to breath 3 to 4 ft from the wall.
The sound source 18ft apart is to me closer to a headphone experience than speakers even dipoles.
The other benefit is they can be driven with anything and respond well to quality.

