Very cool ZHP, looking forward to updates with your s54 swap. In case you're unfamiliar, here's some items to address:
If you haven't ordered bearings, I'd recommend the WPC treated ones:
http://www.m3forum.net/m3forum/showt...&highlight=wpc
Change out the CPV o-ring with a viton one while it's easily accessible: http://www.m3forum.net/m3forum/showt...ight=CPV+viton
VANOS stuff from Beisan (drilled pump disk, seals, plate, solenoid, rattle kit): http://www.beisansystems.com
For valve shims, save yourself a few hundred bucks and go with the Wiseco VSK4: http://www.m3forum.net/m3forum/showt...eap+valve+shim
If you replace the clutch, go with a Luk kit (it'll have the OE disc and pressure plate), but toss the throw-out bearing and pilot bearing in the garbage and get OE BMW ones.
And as a heads up, consensus on VCG for the s54 is go with OE BMW as it's rumored to be viton, the others will end up leaking.