I had to laugh at my typo. the Glass is 3/8" thick, not 5/8". Bill, here is a clip I found online of what I'm talking about. It's the bottom track that haunts me in my sleep. I do not own this photo - just borrowed for an example:
Carlos, the closest I could find was a shop two hours from me in Tallahassee, but I'm still waiting on a reply back from them. I also sent them this image.