OK, thinking outside the box here but Vancouver is such a beautiful place, would it be possible to drive up and get them directly? I drove from Connecticut to Ottawa a few years ago, and it was good fun, and it assured the large a/d/s M12 speakers I was buying wouldn't be damaged in transit. I was super clear to the border guard what I was doing and no customs charge was issued. YMMV.
With the exchange rate right now, Canadian purchases can deliver excellent value.