Hi David
I have some of the snaps (sorry just enough for my truck) but will take pictures of them so you know what to look for. I have seen them on one of the old car sites so they are being reproduced.
As to the door handles, as you can see in the picture my Pat 12 C60L has the same type of handles with the short lobe pointing forward waiting to get caught on brush.
I replaced them with a very similar design that are 40s Dodge which are the curved design which are less likely to get caught on stuff. The correct ones are available as bright chrome I'll try and find the source.
I'll take some photos. Oh yes the picture is of my truck as found not as it is today.
Cheers Phil