If your looking for an exact match for a show truck, those aren't exactly the same, similar but looks like different casting years.
They're perfectly useable, but if you want it for looks, I would do as the other guys do, and buy them used and rebuild them yourself.
Of course the guy might be just using a stock photo and if you can get him to guarantee an exact matched set or a full refund including the shipping costs, then its not a bad deal.