Well, the EMPEG has been installed! It was done by Sound Solutions (http://www.snd-solutions.com) in Chantilly VA. It took them about 3 hours to do it with a Profile Baja 440 (100W per channels, 400W total). It looks really nice and I will put a pic of the final thing on a site later.

Only problem is that the faceplate for the EMPEG is wider than the trim really allows. It slides in all the way, no problem but it is not quite flush. You can see the sled's edge. Not a big deal. I will probably try this weekend to trim the trim so that it is flush and, hopefully, does not look worse. The installer said they could do it or try a custom plexiglass trim (which I might do later) but I figured it was good enough for now and I wanted to try trimming it.

Thanks to DiGNAN17 for recommending the place. Very professional and good work.