My original chain went at 6,500 miles. I replaced it with a DID X-ring, but took a chance on not replacing the sprockets. It's done just over 12k now, without any problem.
I changed the front brake pads at the 6k service, the originals are still in the rear.
The rear tyre was replaced at 10,500 miles, but that was down to punctures, rather than the tread being worn out. The front has about 3.5mm left on it.
I use these guys for tyres, they're local enough for me to take the wheels over in the car.http://www.wheelhousetyres.co.uk/
The only odd one of your schedule is "front shocks have just been replaced"