Chris,
You can get the centerforce dual friction clutch at Jegs and probably Summit. It will come with everything you need except for the throwout bearing and the alignment tool of which both can be baught front Jegs as well. The throwout bearing is $50 and the alignment tool is 10 spline and less then $10.
As far as how much the clutch itself is it costs $317 from Jegs.
Clutch: http://www.jegs.com/i/Centerforce/183/DF226049/10002/-1#
Throwout bearing: http://www.jegs.com/i/Centerforce/183/N-1754/10002/-1
Hope this helps.
Shane
Glynn Motorsports