71 Duster: how do you remove metal and vinyl trim under pop-out windows?

Success! Your info was right on the mark. As you said, there were clips along the front edge of the panel that allowed me to pry the panel away from the side. The panel was also held in place by a strip of non-hardening adhesive that was run up the back edge, along the top (on the lower edge of the chrome strip) and then down the right side. With this removed - three screws in the chrome strip were easily removed and then the metal sail was free to slide forward and off.

With the side trim removed - I can see that the headliner installation shouldn't be too difficult while I have the windshield and rear window removed. I'd guess that it could be installed with the gaskets in place but would be more difficult.

Thanks again for the help.
Ken