That's not the style of clips used though. There are narrow pins in the upper quarter trim panel. They come included with the trim panel, part number F4DZ5452018ABT (right), F4DZ5452019ABT (left).
They are received by a vinyl grommet in the body of the car, which is available (headliner & pillar trim panel grommet, taurus/sable 1992-on)
These Ford pins are similar, but go into a different style body grommet:
I searched the Auveco catalog and Stanley, that while they sell the grommet, don't have any pin that looks like the original.
The best place would seem to be a u-pull full of old Tauruses.