Part one: wiper stalk
This should be the easiest of all processes - literally took ten minutes, and five screws.
* Undo the one screw which holds the bottom of your steering column plastic down.
* Remove the two screws which hold the top of the steering plastic column down.
* Remove the two screws which hold the wiper stalk to the steering column.
Installation should be the reversal of the above.
The whole assembly I bought from Japan. The white part and the indicator stalk isn't required at all.
Side view - the two screws on the side already removed.
New and old side by side.
The two stalks.
Wiper stalk connector. Should be the same as your original one.
