Opening the TR / DR bulkhead door, we look into the tack room - and through the bulkhead window into the horse stall area.  We can see several features from this view: the 12-Volt DC oscillating fan, the fully insulated and carpeted bulkhead wall between the TR and horse area, 6 bridle hooks, and the ends of 2 saddle racks.  The exterior TR door is open - to the extreme left edge of this photo.

This customer will put a self-contained chemical "porta-potty" in the tack room.  Thus, they will have a private toilet room directly accessible from the dressing / living room compartment - without needing to walk outside the trailer.  Of course - the TR and bulkhead doors have a dead-bolt locks controllable from inside the TR / toilet room.