Ken,
Welcome to the forums. Before moving to the island I lived just south of Edmonton in Leduc for most of my teen years. Prior to that in rural Millet on a farm, so I understand the hardships
Photopaper will work in a pinch but it's not ideal. Definatley don't use normal photocopier paper. The ink will oversaturate the prints and it's far too thin to stand up to even minor abuse. Georgia Pacific 110lb Cardstock works the best in my opinion. Have you considered ordering cardstock and other materials over the internet? Regardless of how isolated you are I'm sure you have a mailbox on the rangeroad.
You can order materials from Staples online at: http://www.staples.ca/ENG/Catalog/stap_home.asp?CT=1
Hope that helps and good luck to you!