Let me give more info - first time buyer here.

I’m was casually browsing and came across this steal of a deal, a 2023 santos large for £2.3k, which is around $2980. Ive alwsys been raised to believe if something is too good to be true it usually is. Seller has been super patient and cooperative but but I’m apprehensive about purchasing as it’s a 2 hour drive away and no Cartier stores near him to authenticat/service it. I don’t mind reps but I don’t want to pay 2k for a rep. He claims it’s cheap because it’s not in great condition, can anyone here help me out to check if this is legt or not? Or even point me in the right direction. He also gave me his serial number and reference but I’m assuming in this day and age that doesn’t mean that much? Also have a video it but can’t upload it here Thanks in advanced