Take some time and search through the forum.
Is that 35 on the speedo or GPS? The speedo lies.
Check the variator boss, if it looks like a top hat you need one that just looks like a tube. If you want to spend money, buy a polini or malossi variator, it's worth it.
First place I would spend money is exhaust, 100-150 should get you decent expansion chamber that will wake the stock cylinder up, and still be good if you move to a BBK in the future. Technigas Next R is nice.
If you get a new pipe you need to upjet your carb. Or better yet spend 60-100 bucks and buy a 17.5mm carb. Or search ebay for the stock carb off a 2002, they were 17.5. Also get a few jets for running.
Don't skimp and buy cheap Chinese crap.
Check out these sites for parts.
https://www.racingplanetusa.com/kymco-people-bf10ac-bf10ag-c-2_18-1.htmlhttps://www.scootertuning.ca/en/21014-kymco-people-50-ac-2tBrap brap