Looks pretty good so far, 9mm MDF seems a bit thin though. Anyway popped in to give you a Marquee Area alert, You want to take the top and bottom of your marquee back about 1/4" If you can drop the top down you should drop it at least the same, if you don't when it comes to marquee retainers they will sit in front of and above the edges. Not a good look even with the thinnest retainers I could find.