Legit check???

Yo guys I just recently started collecting funkos. As of like a couple weeks ago I started with a doctor doom 591 shared sticker (I believe) and a Gus Fring. Not the face half blown off one tho. I’m in discussions to purchase a (signed by Hayden Christensen) anakin skywalker w sith eyes. Not JSA certified. Would have to do that later. The seller claims to have had it signed at comic con and while I’m inclined to believe them, I want to be as certain as possible. Can anyone help me verify authenticity at all? As well as maybe provide what you think the pop might actually be worth so I know if I’m over spending? Any and all help is appreciated thank you 🤲🏻🤲🏻🤲🏻 THANK YOU