[Van]

traditionally most doors, in sets, open off stage, away from the face of the givien door flat. The biggest reason for this is it allows for better bracing of the flat. Being able to put jacks right against the jamb of the door units kept the flat from flexing and thereby allowing the door to scrap on the floor. Nowdays we usually don't have quite the restraints, and if one is building with Luan covered flats the walls don't have nearly as much flex.
After looking at the drawing I would move the swing of the door to upstage. However, to hide a gag, or cover a trick I have seen several doors that open downstage as this unit is drawn.