Ah, you're in Canada . If you're interested in buying them new from a Canadian vendor, check out the Oak Meadow website. http://www.oakmeadow.com, under Canada there is the Oak Meadow distributors phone number. She also sells the Christopherus materials! She's in B.C. too .
Just wanted to say I love Donna's books and couldn't part with any of them. I have never seen them for sale used except once on a Waldorf supplies email loop. There is always lots of requests on the loop for her materials used. Good Luck. BTW, they are worth every penny new.