Dry clutch? Easy change. whip off the cover, put the bike in gear and lock the back wheel (rear brake or tie the wheel to the swingarm) and undo the 6 bolts on the outer plate. The plates then come out in sequence metal / friction.
You can use any old plates, but I've heard the best are the genuine Honda items. That's certainly what I used on mine when I raced it.
Could the click be brake pads / caliper mount related? If not I'd suggest the swingarm bearings. Check for freeplay in the back end by supporting the bike frame and jiggling the swingarm up and down - you can't do this on a paddock stand!
Shock condition? How does it feel to ride? Mostly you loose damping, so if the rebound is wound up to max and the back end is still too bouncy, then it's time for an overhaul...
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