Let's try this a different way then

I agree with Soix get the Joseph audio RM25s

Other than a higher ceiling, my listening room dimensions are quite similar to yours. I've used MMGs (with subs) across the long wall with superb results. As Ralph notes, they'd probably be fine on the short wall, too (given the response null to the side), but my room isn't laid out that way. Without the subs, bottom end response is too limited for my taste, but the room size is almost ideal for the speakers, IMO.

FWIW.

Sorry, that should have read "as Duke notes"

Agree with Duke. If you like the Maggie bipolar planar sound, having distance to both front and rear walls is the key for optimal results. Distance to side walls matters much less. The best Maggie setups I have heard have the speakers 1/3 the depth of the room or even more out from the front wall. That's how teh famous Jim Smith used to set them up years ago at Audition in Birmingham Alabama, where I first heard and fell in love with them. Unfortunately, its not a configuration that is marketable or practically works well for many, so you don't see it as often as one would expect.

Tannoys also image like crazy!!