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.
I bought a complete set of Binci "a mano" reeds in D directly from Claudio Binci a couple of years ago. The price was 118 Euro, or about $150 + shipping of about $50.
I used the D reeds to replace the C reeds in the Martin i bought from Glenn that already had a few broken reeds and was in need of a complete retune.