Yes, if the seller is willing to do that, it can save on customs charges. BUT it can be a double-edged sword .... if the parcel is lost, you're only insured up to the declared value, not what you actually paid for the kite.
Another one just popped up in Europe on FB. 160 euros plus shipping. Just be careful though. It has some minor damage to the sail so I personally think he is asking a bit above its value.