Good advice here.
I also try to look for higher than standard 8' ceilings, if possible. However, that is somewhat dependent on speaker choice. With Martin Logan dipoles, like yours and mine, it might not be that important. But, often standard height ceilings are a source of unpleasant first reflections from a horizontal surface. One of Amir's articles here somewhere makes the point that research shows reflections from vertical surfaces are generally much less of a problem than from horizontal ones. A good rug/carpet with decent padding is usually ok for the floor. But, sitting right up against the wall behind you is also seldom a good idea.
Of course, there are always arguments about treatments vs. EQ. I am not a treatments guy, preferring just full range EQ, with adjustments to the target curve by ear as necessary. I just do not know where to begin with treatments. They are more complicated than many believe.
Some of the room treatments guys in many cases will have you just throwing in their stuff, deadening first side reflections and adding bass traps which are ineffective much below 100Hz. And, many glowing anecdotes by audiophiles about treatments seem filled with placebo and confirmation bias after all their time and effort, usually without benefit of careful measurements. I think measurements usually require some considerable expert knowlege to be able to interpret them and apply that to effective treatment. I am smart enough to know that knowlege is above my pay grade.
As many of Ray Dunzi's excellent measurements show, EQ alone can do a really good job. It is cheaper, and confirmation and adjustment much simpler. Anecdotally, I have had very satisfying results with it, as have my closest friends. After my last move, I just did a Dirac calibration with the default target curve. I have lived quite happily with it that way for about 4 years.