Update: To make a custom mount that would fit in the frame of my front door, I ended up gluing 3 pieces of paint stir sticks together and cutting it to size. The front two pieces are the same width, and the back one about 2/3 of the width to fit into the multi-level crevices.
For the side door, I ended up just using the wedge. It overlaps a bit with the door frame, but it works. I caulked the top to make sure water doesn’t trickle down the back. Hope this helps with anyone else having similar issues.
