I am not an expert on this topic, but that sounds a little pricey for a set of machine made reeds (as opposed to "a mano" or "tipo a mano"). I don't recall what a set of handmade #1 reeds for a Cajun accordion costs, but I do remember that a full set of Binci #1's for a triple row only added around a couple hundred bucks to the price of a new Baffetti accordion.
And $157 for shipping and handling!!! That is a total ripoff! Surely that must be a typo.