Hey Rob, I understand the frustration on finding parts. I have a 73 Scamp with a factory sunroof and had to modify the seals with whatever I could find. The cables were fine but the cranking gear was worn out just enough so it wouldn't open or close. Not sure what all you need to fix but I got mine working great.
Don't remember the place I bought the material for the seal, but thin aluminum wrapped in a soft rubber that came in a roll that I glued on the lip of the opening.
View attachment 1716265901
View attachment 1716265902
View attachment 1716265903