I agree they may be a bit too big for your room, I don't think they would breath well. The 1.6qr's could be a bit too large for that space as well. But, the MMG could be absolutely perfect. If you want to try Maggies I think this is a pefect way to do it. I would not buy a sub to start, but I would suggest a powerful amp. Something along the lines of an older Parasound (2200) or NAD 218thx, to stick your toe in the water. If you have not had Maggies before you may love them, they have a very open sound that is well documented, and coherence is great.
If you decide you like them, then get a small sub to go with them. I love mine, and started much the same way. I have tried many other fine speakers over the years, and always come back to the Maggies, I just don't like the sound of the box part of traditional speakers. If the Quads could play a little louder I would probably like them better, but they don't for me it's pretty much only Maggies. Good luck.
If you decide you like them, then get a small sub to go with them. I love mine, and started much the same way. I have tried many other fine speakers over the years, and always come back to the Maggies, I just don't like the sound of the box part of traditional speakers. If the Quads could play a little louder I would probably like them better, but they don't for me it's pretty much only Maggies. Good luck.