phone canada customs and ask
but yeah, long story short, if you're not picking it up yourself, you'll get hit with:
GST and PST, brokerage, and whatever the duty amount on it is (ask canada customs
)
if you're picking it up yourself, you'll skip the brokerage fee...
If you get lucky, there have a been a few days recently where they've striked, and not charged tax or duty, but I think those days are over
I have a mailbox just over the border that I go to monthly