Headliner or Glass... Which should go First?
Since you have a choice then liner first.
Upholtery shops do headliner all day with glass in the car.
I've done 6 headliners, all with glass in the car, it's not a big deal. I've taken one out of a wrecked car and put it in another car, was easier than doing a new one.
Edit, I've done BCE bodies. No A bodies.