5 speed conversion au series 3 wagon

[imbhvn]

Hey guys im looking at doing a 5 speed conversion on my wagon as the auto is starting to play funny games, just wondering whats involved in doing it? Does the auto tailshaft work with the manual box or are the yokes different? do i have to do anything with the bcm or is it un affected? Any help and instructions will be greatly appreciated. Thanks in advance