I found some belting material that so far has promise. The only problem is instead of a rubber lip going into the door panel there is a chrome lip. There is about a 1/8" showing when the strip is in place. The edge can be painted to mask the chrome. Here is a picture of what I have so far.
What does everyone think? There is also a possibility that the C4 corvette seals are a close match. I will try and get my hands on that material this week.