Sorry for the disconnected summary, but it was more a brainstorm to me and hope the Pro's coleagues of this community will add more important things that we could both benefit from ....
All good points. I am also just thinking, deciding etc. One thing that is less of a problem for me is removal - I don't plan to ever remove it
With current setup I open the front panel of the windshield (window if you will), thats it. I certainly don't remove the top - I like the shade (and its also somewhat a requirement - gotta hide from the sun). The guy that does the work suggested macrolon and I liked the idea but it is pretty expensive, so I am not sure - this project is Big Money as it is.
I did look up some of these rope track connectors. They have a connector like that for the edge of the hard top, pre-made and very sturdy. I guess something has to be improvised for the inner surface but it's an idea.