I've just broken in my OEM clutch replacement by Exedy (~1000kms). Cost about $550 bought locally. Didn't replace my DM flywheel but did get it machined by someone my mechanic knew
My stock one was slipping very badly when I replaced it, probably left it a little too long but it made it to about 105,000kms.
The Exedy bites better than the OEM and holds up perfectly fine with a JB4. It's supposedly rated to hold up to 350rwkw which I don't see myself exceeding any time soon!
Let me know if you have any questions, I'll be happy to help where I can
