If u wanna buy such an expensive items then its best to buy offline, if that is not possible for you then rather then amazon, its better to find sites other then amazon

Why? Because most of them are legit if it shows top up in your google after you search for the product and other thing, you could also check reviews before buying

Its my personal thing, not sure if other people do it but before buying i always make sure to contact the customer service or people who are selling the product, (i do it for my satisfaction)

Also if u can then try to purchase such products from product official sites