I need to do this job too. Not looking forward to it.
It's not as hard as it seems...
Take the steering wheel Off remove the bottom cover on the cowl, remover the 3 screws on the stalks, unclip the wires at the rear of the stalks, remove stalks CAREFULLY, press the hazard button to help get that out without busting either the stalk or the Top Cowl/housing... Remove the ignition wiring..
Undo the bottom bolt behind the pedals (2 spanners) and undo the top Allen bolt that holds the barrel housing and now use the rubber mallet to remove the inner column... Job done...
If you have to take out the column housing then the Complete dash needs to come out.... A lot more work but nothing too taxing!!
HTH