There is nothing unusual about a line cord from this sort of fixture. Some Fl. fixtures can be purchased with a simple factory installed line cord. Just be attentive in doing same and make sure there's a strain relief on the cord. By the way, where else but from the ceiling would you mount it?
Be sure the power cord doesn't catch on sharp metal edges. You can use a clamp that screws into the 3/4 inch or so round hole that most fluorescent shop light fixtures have for stringing wires through, and this protects the cord.
Tornado victims: Do not rush to rebuild. Take your time and look for and get a good contractor. Or consider selling the property and moving to a home that is ready to live in.