Hi Rob,
I was interested in the VTF-2 and contacted Hsu Research. They told me that it was made in the US and that the STF line was made in China.
If the VTF-3R is made in the US then under NAFTA you would be exempt from duty. You would still have to pay for delivery (if applicable), gst & pst and probably brokerage fees.
I would contact Hsu to see about the country of origin and then their shipper UPS, FedEX, whoever, to confirm brokerage fees.
A very rough rule of thumb is to take the US price and double it, that often reflects the true price delivered to your door in Cnd dollars