Kind of an impossible question to answer. You can get really lucky and shoot a 190" from the road on the first day driving up to hunt, or you can wear out a pair of boots and only see a glimpse of a 150"er. Personally, I'd choose the second route for his best chances. Also, a trophy lies in the eyes of the beholder. Maybe a 150" is his dream buck, pending other details of his hunt were as he dreamed.