Since whatever you do you will have to remove the existing door, there's one more thing to consider: repair ir yourself.
gives a brief description of how you do it, and if you can get your current door off, you have won half the battle, I think. I don't know, since the only door I've ever taken off my AS is the screen door.
Flying also lists a bunch of threads about it here
I dunno what you had in mind, but you won't be alone, lots of folks have had the bad luck with the door. Good luck!