Have you been watching kijiji?  Seen a few on there for sale from time to time.

We eventually gave up trying to find a good used one;  bit the bullet and bought a woods tent from cabelas.  Best price I could find.  Also bought the pole kit. (not a frame kit, and a bargain for fast setup IMO).  Seems to be a nice tent.

http://www.cabelas.ca/product/10694/woods-standard-prospector-tents  we bought a 10x12.
the pole kit:  http://www.cabelas.ca/product/6499/woods-steel-pole-wall-set

Just got an email ad.  Wholesale has all in stock tents 20% off?

Best of luck.