What would it cost to repair the front end of my cavalier? on 2003 Chevrolet Cavalier

The head lights were knocked out of place some of the front end is has fell apart such as the plastic place holders that held in both head lights and also on my back end my break light button sticks so it's constanly on so unless I prop something under the brake it stays on and drains my battery.

Asked by for the 2003 Chevrolet Cavalier