Time for a clutch assembly overhaul? The most obvious replacement parts are the friction discs and plates. Also consider new clutch springs at the same time, as the old ones will have weakened with use, and although may still work, will not impart that crisp, showroom fresh progressive feel that the clutch action should enjoy.
More clutch related parts listed below you may wish to consider:
Add as many components as you wish to the same shopping cart, new seals and gaskets for example, and still only pay the same single fixed price shipping cost.