Ok you guys can stop worrying I got all but one out, it will have to be drilled. I am not sure which method worked the best as I used heat, kroil and a few words that I have written down for later use, (altho not approprate to print here)

. I also ground some old broken Brownell's bits to fit the slot and used an impact driver with light taps with a solid blow hammer. Since the screws were already buggered up I figured I had nothing to loose as I wanted the action saved. once I got them to move everything (but one) came loose. I will make replacement screw since I don't think I can buy them anywhere.