There was nothing at Mike's Monte, but after extensively searching the www and many phone calls, there is some hope at
www.restorationspecialties.com
At their request, Todd suggested sending a section of what I have to see if their technical person, Jeff, can match it to something close and that will work. All the other "BIG Name" restoration part suppliers had nothing for me, or any leads. If Restoration Specialists comes through with a product that works, I will keep the board posted. BTW, like many with these old cars, my door window channel guides have become so brittle, they just crack and fall apart with any pressure. In my case portions of the channel have broken off and missing, so I must replace them. My wagon is in very good condition for a 79 model, but all rubber is showing its age. It is a southern car, so the sun was not kind to rubber and plastic.