It isn't too difficult to find the code on the driver's door lock ~ I had to do it last year when it turned out there was no code on my column lock!
(my keys are very old and worn down, and only one set came with the car so I wanted to get a second set but not made from old worn out keys).
Anyhow, I was able to pull the door panel, clean up the area on the lock, stick my phone in the door and get a pic of the numbers that was good enough to zoom in on and clearly see the code.
Once you have that, you can contact WCCC, or your local locksmith, and they'll cut you a key.