Hmmm. If I knew of a good place to go land and go sheep hunting in northern BC, I personally wouldn't tell anyone about it. Least of all someone who just moved in. Nothing personal, but that's how it is. I wouldn't get my hopes up.
I do not know all the outfitters in NBC but I do know a lot around Atlin, Teslin and Dease Lake. While prospecting i found them the most helpful people. They wanted to know where you were operating so that they were aware of any potential conflicts with their clients. I doubt they would give advice on where to hunt, but I do know they had no issues with other (legal) hunters operating within their franchise.
And I am very sure they will give you accurate details on any and all airstrips within their area.