Here is the problem. Unless you see something you have not mentioned, I'm still not sure what the problem is. If its the gear, then forget Ford or a parts house. Those things are a dime a dozen. When my truck sheered off the end of the cylinder, I was a couple of miles out in a Florida swamp.
I had a phillip's screwdriver and a pair of vice grips. I pulled the steering wheel off, took off the collar with the rack and gear, put the wheel back on, and was able to crank it by pushing on a bar with my thumb.
In fact, I drove it the rest of hunting season and all summer long that way. I just got around to replacing the parts in Sept. But, I'm not sure you can do that with a later Crown Vic.
Before we go much farther, you need to get that gear out. Looking in the hole, there is usually a lot of grease. Run a rag in there and clean it out. You should see the round metal plate with the snap ring holding it in place.
That plate is in there to prevent someone from snatching out the key cylinder, and sticking a screwdriver in and cranking the car. Its round, but has a couple of tabs that engage slots in the hole that prevent it from turning.
Since the gear is behind it, you need a tool shaped like the end of the key cylinder to reach past the plate and turn the gear.
If you don't have some snap ring pliers that will reach, try a couple of sharp pointed objects to stick in the holes and compress the ring and lift it out. Once we get that plate out, we can see what the problem is.
When you pull the brass gear out, if its good then something has happened to the steel rack. Which means you will have to pull the wheel. But from the symptoms, I'm betting on the gear.
As for finding one, as far as I know Ford has used that same gear for decades, in every column mount key system they make. There should literately be millions of them out there. Practice getting that snap ring out, and you can get a gear from any pick and pull type junkyard that has keys in the ignition of its Fords in less than a minute.
In a pinch, if the gear is broken, and you get it out, then you might be able to use a screwdriver or other flat tool to pry the rack back and forth to crank and turn off the car. I don't advise it long term, because it will wear the rack, and possibly damage the inside of the cylinder hole.
Not to mention getting you curious looks from any cop that sees you cranking the car that way......
As for bothering me, thats a laugh. If things like this bothered me, I for sure would not be hanging around this place. I don't even own a GM product. Look around at the other threads. You will realize that you see one question, and sometimes a dozen people jumping in with help. Most of the people here have been helped by others, but that is not why they join in. They do it for the fun of helping others and figuring out problems.
Work on getting that brass gear out so we can narrow down the problem.