It looks like a 2005 or 2006. It has floor boards but, if I am seeing this correctly, the brake line seems to connect to the brake master cylinder on the side. In 2007 and later models, the brake hose connected to the bottom of the master cylinder.
The technical section on their web site has very good step by step instructions with pictures for both the valve adjustment and shaft drive lubrication. If you have a bike lift and the tools, you should be fine. I pulled the final drive and checked the shaft lube (again, not a straight line for all the comedians out there) without any issues. I pulled the tank and took a hard look at the space that was available to adjust the valves. I am absolutely no good working with those tight clearances so will be taking to the dealer for the valves. Oil, oil filter, and coolant changes are dead simple although you do need to slide the tank back to get to the radiator cap.
You said it had 21,000 miles. That is really not to bad. There is one member on their forum who had a C50 engine grenade on him at 38,000 miles. He is rather vocal about it. other members report 60,000 to 80,000 miles without an issue.
LOL. I just noticed you are in Hawaii. Forget everything I said about Interstate cruising. This is me in July heading out for a 1,500 mile road trip.
Keep us posted.