All kidding aside, you will want to replace the tumbler set, the electrical portion and the steering lock. Older cars are a bit more brittle and subject to cracking in the dash area. Doing the repair for clients is always tougher as they don't want any extra damages to their car even though it's older than dirt.
I use a high speed dremel with a carbuerundum ball bit to remove the locking stud and when possible a cutting wheel in the same tool to slice the screws off. Once that's done the rest is pretty simple. The link provided is pretty much how it goes on all these older models...... with exception of the 140.
Bill