The official BMW manuals, are not a real great source of info, other than torques, tolerances etc., and sometimes even these can be wrong .
The BMW manuals are written in the context, that you have been factory trained to work on BMW bikes, so we don't need to put a lot of 'general' knowledge information in the manual .
That lack of 'general' knowledge, can get you into trouble real fast .
I have the manual, nowhere in the manual does it state that you need to block the crankshaft, before removing the flywheel, or clutch carrier !!!
If you can get one for a decent price, I would go for it, but if it gets pricey, I'd pass on it .