Number one, that would be very, very expensive as a 320 simulator plus instructor would cost 500-800 dollars an hour or more.
Second, despite the sim being a recognized substitute for the real aircraft for training and landing currency, and many of us having sweated in it more than a few times, it is not a substitute for line flying experience.
I have never heard of an airline waiving time on type in lieu of an absurd amount of simulator time, and I don't see this as a viable (or cost effective) way of skipping to the head of the line at a hiring airline.