Did you decide on something? I'm looking into exactly the same thing, for the same size Haulmark. Except I have a cat I need to enclose, plus I like the look of the factory screen door, with a matching door. I also want a window that opens in the door. So I figure since I'd have to pay to modify my door anyway, perhaps its not much more expensive to get the door/screen setup and it would all be cleaner.
I am currently using the mag screen, which does gap a bit. My cat figured it out, so I put a board on the lower half, but he's a cat and climbed right over it. So for me, a real screen door is the best.
Anyone have any great suppliers? I found the same supplier pnolans did, and thats the only one I've found...
What I want to do is replace my existing door with the same kind of door that most travel trailers have. I've sat in Jim's trailer and my dogs love it, and I too like being able to close a screen door and still have a some visibility outdoors and some breeze. it will keep my dogs inside when I want to leave them inside. Yes, they COULD jump through it, but they won't.
I would like to get something like this... this guy wants $350 plus shipping... the below door looks very similar to my current door. I hope I'm not being confusing here.
Pat