I would like to drive out, take out the old, put in the new, and see if the motor even works.
Well if all you want to do is a "does it run" test before deciding whether or not to spend money on a new ignition lock cylinder & key, there's a cheap & easy way.
- Remove the lower instrument pod cover.
- Remove the two bolts and two nuts which secure the steering column to the support structure under the dash. Keep at least one hand on the steering column while removing that last bolt or nut, unless you like getting bonked on the head by a steering column.
- remove the highbeam/lowbeam switch (1 bolt & 1 nut)
- remove the remaining stud which holds the ignition switch
- you can slip the ignition switch free of the actuating arm by sliding it toward the passenger side of the car
- use a piece of stiff wire, a bent paperclip, or a small screwdriver to work the ignition switch the same way the actuating rod does. If you push the slider in the switch all the way to the far end of the switch (toward the front of the car), you'll set it to the ACC position. From there, each "click" is as follows: LOCK, OFF, IGN ON, START.
Trust me, it works. It's also the easiest way to get yourself home from a long road trip when the actuating rod grants itself a divorce from the ignition lock cylinder, and you didn't think that you'd need to bring your steering column tools with you.

I currently have a steering column out of the car, and can take photos of how everything goes together if you're interested.