Just logistically 50 different sets is INSANE. If you're giving yourself a year, I strongly recommend taking a good long look at the script, and finding scenes that can take place at the same location, or be shot on the same location standing in for different locations. Just travel will kill you.

I shot a film where a small box canyon, with a couple props and different times of day and angles stood for four different locations.

I acted in a film where a racquetball court was both a dystopian prison cell, and with the addition of a file cabinet and a plant, served as a office for a close-up dialogue scene.