A few people have asked so attached is a 2 tab spreadsheet of all the conversion parts I used / could remember while converting my 330ci.
Also a TIPS tab. Notably the last tip, which is that it will cost more than you think, especially if you're a fussy bugger like me.
This isn't gospel, it is a GUIDE. Hopefully it helps someone else out.
BMWorld, HellBM, MotorSport Rentals, P&S Automotive and FCPEuro are great sources of help and parts
E46 Manual Conversion List.xlsx