Re: Service questions
First, if it ain't broke, don't fix it, unless it's a Harley, then fix it 'till it's broke.
That means that I wouldn't worry about the clutch yet. Would check the valve adjustment, and I think most dealers would suggest that you check the timing chain adjuster. Get your weep holes drilled too.
Change out all your fluids (brake, radiator, oils etc. You'll have wheels off for tires and brakes, so you can check wheel bearings then.
I suppose you could consider the rear main seal swap, slave valve etc., but I'd only do that if you really wanted to tear into for no better reason than your own personal satisfaction. Can't say I'd recommend it though, as lots of these bikes make it well into the 100,000+ miles without needing anything. Your call there.