Well I didn't have a door at all on the side, I just bought a door and took a Sawzall to the wall. One side note; I got my door used off of a travel trailer. The trailer had been in an accident and I got the door for less than $100.
Personally, I would fabricate a new locking mech for the existing door. A house door may look cheesy. I don't mind looking like I built it, but I don't like looking like the hillbilly that I am
