Here are a few close up photos from when I removed my locked up ignition.
As soon as you pull this assembly out, your steering will be unlocked.
Once you grind the pin down and loosen the clamp with the 10mm nut, it just slides out of the column.
Super easy. I had mine out and back in in less than an hour.
You do not need a new assembly, you reuse the old one.
The first picture is overall view, second picture is the pin ground down, third picture is the hatch and spring/pin removed.
You don't have to remove the tumbler assembly if you grind down the pin.
I tried using an air chisel to vibrate the assembly to see if my key would turn and it wouldn't. Grinding the pin was what works for most.
Jared