I'll add one more speaker you should explore. The Eminent Technology LFT 8B in a "stacked" configuration. I wish I had first hand knowledge of these but alas I don't live near anyone who owns these. But don't let that stop you. Do your research and you will find that these may just be your ticket.
Start with this article about the "Poor Man's Infinity IRS V" and then read Doug Schroeder's (a frequent contributer to Audiogon and now a reviewer for Dagogo) review and see if this might be the way to go.
Someone is selling a set of these here with the Sound Anchor base for around $1500 plus shipping.
I own Maggies myself, but finding these and other articles has started me rethinking my system.