Could anyone help me authentic some Lego technic?

Going to be meeting a gentleman from Facebook marketplace for three sets Porsche GT4 e-Performance Race Car PEUGEOT 9X8 24H Le Mans Hybrid And lastly the Porsche RSR 911 (The price is a little too good for the three that’s the only thing, $180 cad for all 3, so praying they are all authentic and good to go 😭😭😭) Now I asked him for more pictures but he said to just come in person and look at them, I was thinking if I upload the pics here in an hour, yall could give me the green light to buy...