Recommendations for buying second hand M1

Hello guys, I’m excited because I’m returning to the ecosystem after like 7 years of a break. There’s a person who is selling his M1 16/512 GB for 12,500 pesos Mexicanos (612 USD approx). I know the best option to check for an Apple product it’s at a MacStore, but since that’s not going to be possible, what should I look for when we reunite? I add some pictures for reference, also the battery is at 95% and unfortunately there’s no charger included (that doesn’t really concern me tho).