Your house is the 4/3 1984 sq ft, fully furnished? Definitely should go for more than a townhouse. Of course you'll still need to allow for yard maintenance on that quarter acre. Tenants don't take a lot of pride in mowing. The Zillow price sounds like a starting point. Add your mortgage, insurance, taxes and maintenance, plus some amount for wear and tear on the furnishings. If that figure comes out higher than your expected rent, you're losing money unless you anticipate that the property will appreciate significantly.
One wacky alternative: look into a vacation rental if there are any attractions nearby. (How far is the commute to Chicago?) A big house like that is attractive to large parties. You can collect the equivalent to a month's rent in a single weekend. If you're deep in suburbia, might not work.