It's raining right now otherwise I'd get you a detailed picture. But, I believe the door side plate sits on the surface while the body side sits in a recess.
As for the door bumper, I found one close in dimensions on McMaster. Which is what you see in the picture. I searched this site with no luck, the original post must be lost to time. So I don't have the McMaster part number. I'd have to measure what I have and look it up again.
