I would go with Genuine. What is the difference in price?
Have you fitted a Puig screen. I did, and found it made riding more pleasurable having the wind deflected. Well worth the money.
Next on my "Must Have" list is a Denali SoundBomb Horn 113db. I fitted one on my Inazuma, what a difference from the stock horn.
The other is a pair of leather pannier bags. Handy to carry all the bits of junk.