Hi again, that could be a bit more complex than just swapping bits, because: the left shift aka 850MK3, has a fixed tranny and so as you cannot play with the primary chain tension anymore by moving the gearbox , you will need an automatic primary chain tensionner (un less going to a belt.......?), as told you I have most of the visible parts (covers and few ratchets) but then after.............it's , i am afraid ,another story.........if you don't know , where you are going , my mind will advise you to keep on right shifting.