For the final drive oil, I went to my local farm store and bought a big animal syringe, no needle, and went to the tubing section and they had some that fit perfectly over the nozzle and was skinny enough to fit in the hole. Was like 3 bucks total. Worked great. Don't push too hard when you fill you could push off the end of the tubing and shoot oil all over(I was careful, and it did not happen fortunately)
The belt change was straight forward. I made the wooden tool(mentioned on the board) with the two bolts in (cost $2.50 for bolts, washers, nuts) and had an old piece of 1/2 inch board around and it worked great. Honda device for the job costs $40.
My belt looked fine, but I changed it because of age not mileage. Rollers were easy, but messy. YOu have to wash your hands a lot o keep things clean. I wore a mask for some things(cleaning the inside), not sure if that dust inside is anything you want to inhale.
Took maybe hour and a half and I went slow.