We have the Black Hole trim manufactured specifically for our purposes, and you aren't going to find the exact same material. I haven't checked other fabrics for a match, but if you get samples of various velvets from your local fabric store you might be able to find a close match. By the way, to install the Masquerade you need 3/4" of clearance at the top and 2" on each side, so you can't install the system into a prebuilt opening that is the exact outside dimensions of the frame (i.e. flush). Now you CAN build a flush "casement" around the Masquerade AFTER you've installed it, but of course then if you ever wanted to take the Masquerade down you would have to remove that casement first.
When you order the Masquerade with a power cord, the cord exits the frame at the bottom right hand corner through the bottom of the structure, and will be visible (unless of course you hide it behind a curtain, speakers, etc). It is a standard 3-prong black cord and the standard length is 7.5 feet, although we can make it shorter if you want us to. If you don't want to see a cord you will need to hardwire the system, with your wiring exiting your wall behind the fascia of the Masquerade.
Oh and thanks for the Kudos M@verick! I agree with Anthony that a native 16:9 system should suit you well.