as long as its a trusted mechanic..

I have never had any issues with rubbing from my wiggly piston from my slave.. make sure there is plently of greese there..

The release bearing comes with the clutch kit..
The spiglot bearing cost $2-$5 for a JDM one and shouldnt cost anymore extra as your flywheel is out anyways

Let me know how ya lighten fly wheel feels.. i want to get one too!