As ross said ive his drivers one, can give it to you any time man.
IMO no point trying to take it apart, from my fight with 3 of them they seem to be a sealed unit or youll do more damage than good getting in at them.
Youve to remove the door card and the trim piece on the inside to remove the mirror. More screws and bolts than youd think!
And Jap cars mirror electrical connectors are different to UK ones, theres an extra wire youll need to ground out if you need to swap the connectors over (not sure if yours is jap or not)