To Zkzpb8, you make several thoughtful points on the issue of floor standers vs monitors issue. I have been through this several time, beginning with B&W Matrix 3 MKII ( another 70 lbs behemonth) Then, bought a pair of Green Mountain "Europas" an excellent book shelf type speaker, but somewhat short of the performance of the B&W's GM's were replaced by Vandersteen IC a small footprint floorstander, that was good but provided below average bass, and just average highs, but an accurate and enjoyable speaker, nevertheless
Therefore, as you can see I fell into the same pattern you described, and more or less was convinced, that floor standers provide more bass, and a larger soundstage. This was about 10 years ago and I was a bit uninformed about monitors ,plus a period "monitor mania" began. (TAS and SP seemed to provide a revolving door of new monitors every month). Better small speakers were being built using much higher quality drivers, and crossovers which produced an excellent wide soundstage, accurate midrange and deeper bass.
As noted above in the thread context, my new living space is approx. 2 ft shorter on both axes. I received my shipped furniture and stereo this week. and the speaker boxes look huge, and in my mind's eye will not work in the room. Also, I don't want to take these suckers out of the boxes for both a sound and placement survey because of their individual weight. Thanks