time to install any crown molding gives a room that "finished look" whether it's normal height or taller. You can also drop the trim 2-3 inches if you don't want it as tall if you decide to go this route. Your carpenter will know what to do. Also, on the wainscoting, treat it just the same way you would
carpenter install a chair rail and baseboard but when he gets ready to do the sections in between, have him nail the trim directly to the wall in rectangles or squares (however you want your wainscoting to look). Then he will paint the chair rail, trim on the wall, the wall in between and baseboards the
darkness, install floor-to-ceiling drapes 18 inches past each side of the window. This will ensure that as little light as possible seeps in through cracks.