m50 with m20 flywheel

Can an one out there let me know what the story is with this swap,

i have a complete m20 engine with a getrag 260 box,

and i have a complete m50 single vanos complete out of a e34,

now what i want to do is bolt the 260 to the m50

i know i need the m20 starter the m20 flywheel skimmed

what i need to know is what clutch a e30 320 0r 325i clutch is ther any difference

and what throw out bearing will the m20 one do or do i need some thing else

cheers in advance

Its ok lads i figured it out.
From the crank back you use all the m20 gear. That way no need to change drives or gear box

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