Trim Studs

What are you guys using to put new trim studs on our beloved A-Bodies?

In the process of yanking the windshield on my '71, I noticed about a quarter of the studs were broken off at one point (guessing a previous owner wasn't gentle removing/installing the trim)

And I'd also like to install a 3/4 Vinyl Top on the car (no-top car originally) to go with the rest of my envisioned modifications. So, i don't have any studs on the roof to do this. Also my '72 Demon was a factory 3/4 Vinyl Top car, but the previous owner ground all the studs off the roof.