If you are already contemplating replacing the friction discs, then you might as well fit these new Clutch Plates and springs as well. You will then be confident that you have done the best possible job, and your Clutch will be as smooth and reliable as it was when new.
Don't forget to order your gaskets and seals at the same time, reusing the old ones is not recommended!
Try this gasket sealant: 08C70K0234M. As used by the factory professionals!