My trailer has a rear door, which makes it kind of unique in the teardrop world. I’ve been looking at how to make or purchase an awning that would keep us dry when we open the rear door when it’s raining out. This pic was taken on our last camping trip, and it rained almost the whole weekend.

I was kicking around the idea of getting an ARB-style awning that can be mounted to the roof. But I was put off by the high cost and the negative effect on my trailer’s aerodynamics, which is already bad. Then there’s the fact that these get stolen all the time and I live in an urban area.
I came across this interesting article on Expedition Portal. https://expeditionportal.com/how-to-build-an-inexpensive-rear-door-awning/. Has anyone made their own awning and attached it in this way? If so, do you have any tips and pointers? What do you think of the design?

The rear door of my trailer is fairly huge, so whatever awning option I go with will need to be able to clear the door as it swings open. There is only about 4” of clearance between the top of the door and the flat of the roof, which limits how pitched I could make an awning over the door.

I’d also like to possibly make an awning for the right side of the trailer which can go over our kitchen area, but that would be after finding a solution for our entry door.
Thanks! All ideas and feedback appreciated.