Facebook marketplace very high price

This was my daughters and I’ve been trying to get rid of it for months. I even put it on a free/give away page and had no takers. I don’t want to throw it out because they don’t sell them anymore and I’d rather someone have it who would actually have use for it. I originally listed it as available to ship and Facebook estimated the cost around $20 to ship. A while ago someone inquired about it and when I brought it to UPS they said it would actually cost around $130, so the buyer backed out.

I forgot to change my listing to Local Only and this guy purchased it. I canceled it and Facebook wouldn’t let me contact the buyer to elaborate.

Yesterday he messaged me about it and I explained the shipping story but he still wants it. In the chat, a little box popped up from Facebook saying, “This could be a scam. Click to learn more”.

I am leaning on the side of this NOT being a scam, however when I go to his Facebook page he has no profile pic, no posts available (he could just be private) and his last name is foreign. Also, who would be willing to pay that much for shipping for a used Hello Kitty walker?

Usually scams have very broken English and I would have been suspicious much earlier. If it is legit I would ask for Venmo or PayPal. If I give him that info would that be enough for him to hack my account or something?