Seller created account 17 days before putting up this one and only listing. That said, they've replied thru pink bike messaging that they take PayPal Goods and shared their PayPal email right away.
Reading the ad it seems suspicious. The details state the front axle is for a Lefty, but there's no mention of that in the narrative description. The price is extremely low - don't these usually go for just under $3000? The narrative repeats itself in the first and third sentence and the grammar isn't great.
Try asking the seller for another picture that isn't shown already - like both of the freehub bodies (seems weird that they have both) - with your PB handle and date written on a paper in the frame.
Also ask what kind of valves are in the wheels or ask some other question that an owner of these high quality wheels should know - like what does "Lefty" mean about the axle or what is XDR and HG or what tape was used or what sealant was previously used on the setup or does it have rotor bolts or how long are the valves or what's the rim internal and external width.
Some of they they may be able to just search and figure out so think of things that can't be searched and an actual owner has to know.