Considerations for buying Used Pixel Phone? - eviltoast

Hi all,

Sorry for the foolish question but I have to make a quick decision here and trust you to point me in the right direction.

I am about to buy a google pixel phone second hand with cash. (for graphene, not gonna use a sim)

1: What things do I need to be on the lookout for? How can I quickly verify it is unlocked/rootable?

2: Any recommendations on where to buy? I’ve never used stuff like FB market, craigslist, etc. but I think those places would be my best bet. Please tell me if you have a better idea.

Thanks in advance and hope you have a good rest of your day

EDIT: Graphene in hand! Good to be back on custom roms, rocked cyanogenmod for a long time

Thanks guys