Nice System! I love Maggies as well. I like your simple approach. I even went without a preamp -- just CDP, amps and the Maggies.
Following so many comments on this site, I added Mye stands and found it a very worthwhile upgrade. You might consider modifying the crossovers. Mine came modified so I do not know the speakers in their stock form. But, Maggie owners rave about the difference.
You mention that "final positioning in the room" -- that seems for me to be an endless pursuit. I've been shifting for 5 months and still haven't stopped. Have you?