That wouldn't work for me I would have rats everywhere and we already have enough as it is to keep the cat busy. We pretty much lift all food at night and secure it save 1 chicken feeder and we leave our cats cat food out. Those little buggers are attracted to his food/ambush zone.
You might want to raise the chicken feeder at night as well, so instead of going to the chicken feeder they all head on down to the cats food/ambush zone.