Not sure about the hard clutch line (it IS a hard line that you're asking about, right??), but I'm pretty sure that the hard brake lines are available from BMW and other part sources in straight sections only (i.e.- you bend them the way you need them bent).
Most any auto parts store should have short sections of straight hard brake line in metric sizes, buy a cheap tubing bender and have at it!!!
Bret.
Bret.