the "bed room door" is just an extra piece of the front upholstery material cut and hemmed to make a curtain across the opening. We used a plain silver curtain rod attached across just below the A/C and secured on the back side of the two opposing walls. We attached a strap made of the same material on the bed side aft of the stove and at the cut out area of the 19 wall. The strap is screwed to the wall at one end and has velcro on the other end so as to hold the curtain back when not in use.
The box is the one Reace is working on, a picture of the unfinished box is shown on their web site. The lid is plain and fits over the top edge of the box. The box was attached by Reace just before we picked up the trailer. Someone said he was working on it until early morning hours, we appreciated that effort.