370Z Clutch & Flywheel Recommendations?

pbs370z

2010 370Z
Engine: Stock

I have the infamous CSC (concentric slave cyl. failure) on my 2010 Z (9,000 miles) which I need to fix (with a Zspeed CSC upgrade or similar). Since I'm doing that, I've decided to upgrade the heavy OEM clutch and flywheel to a lighter version.

I'm considering:
ACT Flywheel (#600590 "XACT Streetlite") at 17 lbs. approx. $360.
ACT Clutch Kit (#ACT NZ2-HDSS) approx. $522.

Also looked at:
Southbend DXD Solid Billet Steel $495 ($ouch)
Southbend Clutch #: NSK1000HD-O $735 (This includes the $325 CSC, so not so bad.)

Competition clutch & flywheel: About the same as the ACT parts $

Z1 Performance clutch Kit: $395
Z1 4140 Forged Steel Ultra Light Weight Flywheel $400
(There are good reviews on these Z1 Clutch parts, but I really need to know
what brand and model these parts are before I would consider buying)

Trying to keep the price reasonable since I don't have a high H.P. race car.

Sorry if this is redundant, but I can't find any reviews on the ACT clutch parts. Any info, tips, experiences or reviews on the ACT or others would be welcome and appreciated.