Done, bigger job than I expected. Mainly due to the amount of time required to mount everything, measure and mark, remove, cut, paint, test fit, refit, etc... Turned out really well. Up close you can see the flaws, but that's the reason the backing paint is a dark color, as you never see it unless you look closely. I'm very happy that the design made a difficult, ugly spot to work with, turn into an asset. Recessing the lighting behind the wood makes it difficult to repair, if a light goes out, so good thing it's LED. In the main area, and the other rooms I'll probably use a router to recess track lighting into the wood, put the slats over that. Should make it easier to make, and a little more flexible. Also it will reduce the depth needed, as I have very little vertical space to work with in the main area.