I have the original pieces of glass out of my '51 3100 and they measure the same as what 1953 panels' has given you. They are quite curved and top and bottom and spayed on the sides so you definitely need a template. I had mine cut at a local glass for $100 after I cracked the originals trying to get them out.
Note: that is $100 Canadian so you can probably get them down there for $20 :-)
The chrome trim does not appear to have any affect on the rubber as I changed mine from black rubber to chrome insets without a problem.
I used the string method and they popped in quite nicely.
If you can't find what you need I can trace them and mail you a set.
Peter
