Try calling Minerva's or Parthenon (see place links below). I seem to recall seeing them at Minerva's a number of months back, but if you get a helpful staffer at either place they should be able to steer you in the right direction. Good luck!
PS if you end up going to West Broadway, I find that the food products at Parthenon are cheaper and the staff is a bit friendlier -- if they have your briki you could pick up some great feta, olives, etc and have a picnic at the beach nearby...
3080W Broadway W, Vancouver, BC V6K2H1, CA
Minerva Imports Ltd
3207W Broadway W, Vancouver, BC V6K2H5, CA