That is not cheap to replace the door. I rebuilt mine for a third of that.
Also there is no guarentee that a new door is going to fit perfectly either. I am finding that no two body profiles are identical. The way I did it means that my door is a custom fit to my body profile (The Boler that is) and if I mounted it on another Boler body it would not likely fit as good. Does any of this make sense?
I had two things to contend with:
One was that when the Boler was owned by someone else previously, someone attempted to break into the trailer. They grabbed the top of the door and pulled on it breaking it across at the bottom of the window. The repair was very poor, reglassed only on thei nside skin without roughening the FG surface to get a good bond and pop riviting alum. angles over the patching inside each side of the window. Every time you open or closed the door it almost flapped like a bird. When I cut the two skins apart I ended up with a number of separate pieces, it all fell apart. In my estimation the only fix was to install a alum. frame custom bent to match the body and give the door vertical strength which it lacked with only the 5 wood spaces in it.
The second thing was that like so many of these doors I have looked at is they tend lose their curvature at the bottom leaving a big enough gap for road water etc. to get in. Removing and reshaping the chrome tube was not doing to help me there at all as it ends about 14" off the floor at the top of the seat. So the inside alum. frame solved two problems for me at the same time.
I studied this problem quite a while before I decided on how to approch it. Most the of the fixes in these threads will work, it depends how bad you door is and how much effort you are willing to put into. Mine was not near as difficult as I anticipated it was going to be.
The end cost was just over $100 Can and less than 20 hrs.time. The cost covers the 1"x20' square alum. welding, fiberglass kit, Bondo, primer, paint
and bonding agent.
The door is so solid now when it closes is has that nice solid "Snick" like a car door sound.
I love that sound! Aslo, no more leaks
around the door! That is another big plus.