Great DIY, thanks for posting.
-Will it be possible to use the LED from E36 or E46 M3 lighted shift knob, not sure if it is the same as newer E9* M3 showing in picture, or the earlier lighted M knob versions have some kind of bulb in there insted of 6 LEDs?
-Approx. how long has to be the drill bit for a small wire hole and did you drill from one side only (bottom or top)?
-How to remove the top shift pattern cover, pushing from the bottom or trying to pry off from the top?