The entry door on the Coleman pop up campers is a well designed and functional piece of equipment that I feel outshines the two piece doors any day. I decided to use the OEM entry door for my conversion because it is nicely made and it already fits nicely into the threshold of the existing doorway. The other thing that you might not realize right away is that the sliding track for the bed frame actually passes all the way across the doorway and into the track on the other side (also one reason why the rear track could not be removed, if you wondered). The interesting thing is that you can leave the door in place and slide the bed in. Crucial for this design to work. Got lucky again!