It’s pretty straightforward. Face to face meeting in a public place. Make sure the money you receive isn’t counterfeit. I sold my Pro for $275 with 2 controllers and 2 games. So basically I bought the PS5 for $152.
I was lucky enough to be able to get one yesterday at Walmart. Doing the add to cart trick 1 minute before the 4:00pm drop. I’ll probably sell my Pro on OfferUp or EBay and get 1/2 of my money back from buying the PS5.