That wouldn't be possible because the magnifying glass sits in the main bit of the knife with the blades and the corkscrew is on the back. The only thing that Victorinox make that the corkscrew could be replaced with is a phillips screwdriver.
My ideal EDC SAK wouldn't be how you mentioned. Since I live in the countryside, my ideal one would have to include a saw and i'm not really certain that the small blade is nessecary wouldn't the magnifying glass be more useful?