S50 cam in M50nv questions

[Fusion]

I couldn't find a thread that would anser all my questions, so I need some additional knowledge.

My motor M50 92/3 NV from an e34 euro.
Seller had S50 euro.

If I understand correctly, S50 exhaust cam goes to M50 intake, M50 intake goes to exhaust.
What are all the parts from the S50 I'd need for this?
What are the theoretical gains for such a swap so I can calculate if the investment is worth it.
Does anyone sell a "ready made" chip for this swap (403 dme) or would it have to be custom tuned, or can Turner or someone program one according to swap specifications?

Remember, both motors are Euro.
Thanks!

[gregslow318i]

nvm50 "hot" cam swap will only work with the usdm s5x cams as the euro s50 had dual vanos euro m50 are the same as the usdm m50
as far as the rest of you questions see above statement
no one makes off the shelf "hot" cam swap but Im sure someone can tune it

[Fusion]

Wasn't euro S50B30 only intake Vanos?
I'm not questioning your reply, I always get tangled up in us/euro specs, gets confusing.
Here's a real pic from the seller anyways.

[gregslow318i]

euro s5x and usdm s54 dual vanos
usdm s/m5x single vanos (expect non vanos which as no vanos)

[Fusion]

I always refer to this table, not sure if it has mistakes though.

http://rapidshare.com/files/392292863/BMW_Engine_Numbers.htm.html

[lennon]

european s50b30 is only intake vanos, but i dont know if the exhaust cam will swap into an m50 the same as US s50 does.

[gregslow318i]

http://forums.bimmerforums.com/forum/showthread.php?t=1426005