Magneplanar MG12: good for my room ?

Hi,
I'm thinking about Magneplanar MG12, which impressed me when I listened to them (twice, in different setups and listening rooms), but I know they're very sensitive to positioning and to the listening room's features.
My listening room (which is my living room) is 4m x 8m, about 3m tall (13.3 x 26.6 x 10 feet) and I would position the MG12's along one short side. The rear wall would be about 1m distant (or something more, maybe up to 1.3-1.4m), but I have some problems with the furniture: the panels could not be placed at more than about 2m center-to-center, thus 2.4m tweeter-to-tweeter, because right on the external side of the right speaker there's a low (say 50cm) shelter, where the 37" TV is placed upon, whilst on the left of the left speaker there's the sofa.
But what's most is that behind the left speaker I have a window (with curtains) and behind the right speaker there's the same low piece of furiniture above mentioned, that 'makes a 90° bend' around the speaker.
I don't know if I've been clear enough: I have some photos and even am AutoCAD picture, but... er... I don't know how to publish them here.

Do you think such configuration is suitable for MG12's, or do you think they would sound as a pale shadow of what I heard and liked so much ?

thanks, ciao
daniele