Howdy. Take a map of Saskatchewan, close your eyes, spin your finger in the air, plunk it down on the map, and you have an excellent hunting spot for whitetail......seriously. I hunted Sask. for 18 years as a resident, and there is no problem finding them anywhere. I do not know about the guiding situation, but I find rural folk very friendly and willing to share their deer. Try to talk to some farmers, get permission to hunt their land, and they will tell you where to find the big ones. They lose a LOT of grain to the ever growing whitetail population. Or, get a guide.
YKD