Hi! I’m new to Chanel but I’ve been eyeing one in the preloved market. I found one in a FB group. Seems legit as she has her online store and other buyers. I found Chanel Jumbo Black Caviar in ShW series 18 ( 2013-2014) in Excellent condition. She sent me all pics and videos. It comes with box, dust bag, original auth card, another auth card from another authenticator for 5k. I’ve never done preloved before so I want to be super careful. Is it worth the savings? Thanks!