how much to fix my door lock??

well my car was broken into almost a year ago, the guy punch my lock halfway....the lock is still attach and functions well....its just that the covering is off the panel.....its the driver side....so Im just wondering, how much is it to replace the lock.....do i have to buy the WHoLE set? or can they rekey the lock or something...i reallly dont want to have 2 keys to operate my car....

I am posting because i want to get an idea of how much it is going to take, so i wont get ripped off. Thanks..

i have 96 lx 2dr btw.