HELP (MARKETPLACE)

https://preview.redd.it/6xdskwcp3ahd1.png?width=1860&format=png&auto=webp&s=31e032273a8d4c01c8782f4521744e38f96668f2

Trying to get my first bike! I am a 22F( 5'6) I feel like this would be a great fit (im also looking at ninja's 300-400cc)

I reached out to her. She is still selling it and has a clean title. I am doing research but could use some pointers. Is this a decent price? if I negotiated then how low could I offer without it being unreasonable.

Thank you <3!