Why not decide which parts you need to replace Hawkman, then get them from your local motor-factor ??
Then you don't waste money on bits you don't need, and you pay less for the bits you do need.
For example, the Iridium spark plugs fitted to the Tiger will easily last 24,000 miles, maybe a lot more than that.
Check the air filter, if it's clean leave it alone.
The big issue is valve clearances ! it's a very time consuming job even just to check them. Check the forums,.... loads of discussion on there.
The only routine jobs I do are Oil/filter change and brake service. Check the rest by all means, but don't waste money replacing parts that are still servicable.
I'm assuming that chain and tyres are well looked after before every run
