27 T coupe B pillar broken screws

[tekatlarge]

I have a 27 T coupe, I am restoring. I am working on the cover plate covering the front of the B pillar, that holds the door latch striker. All of the face screws in this cover plate were broken off in the B pillar. I cannot get to the screw because they are broken off inside the cover plate spacers. I am desperate to get these old screws out and a suitable method to replace the screws and nuts that hold them in. they look to be 10/32 screws or something familiar.
Also it looks like there is NO access to the back side of the B pillar at the top, because the window area of the body covers the back of the B pillar, and I am reluctant to pull the body apart there so not even a press-nut can be installed at this point without sticking out into where the window gasket goes to hold the quarter window