1957 need passenger door access cover and lower door stop and screws

[Beginner]

Opened up the door and found the access cover was missing. If I can get the dimensions of the placement of the lower window stop, I can fabricate a replacement. The geometry of the lower stop would also be needed. Anyone have a spare close out cover and lower window stop they would part with? I also need the bolts, or the size they are. I went to the local hardware store for replacements and could not find the size.

Thanks in advance for any help you can give me.