Door Panel Screw Removal

[ol Curt]

I have two screws from my inner door panel that broke off. I have soaked the in penetrating oil and tried to drill them out...broken two bits. I don't know if there is enough left to get an easy out on them...but man they are in there. I'm looking for ideas. I'm thinking of grinding the end off and trying to re-drill. Any ideas?

I also lubed the window hardware, and it rolls very easy till it hits one spot where the window is almost up. Is it difficult to take the things out and clean them up? I suspect the most difficult part is getting the window glass out.