|North of 60 is very, very empty, as you already know. There are a good many beautiful places where you can be truly alone. But ....
Almost all the land is Crown Land, i.e. government-owned. Since Canadians are presumably "the government", it should be our land, but it's not that simple. There are a great number of regulations and roadblocks that will be thrown in your way. Also, much of the land is either owned by natives or subject to some kind of land claim.
There is almost no exception to the rule that you can't buy any land in the north. You might be able to get a lease, but a lease for recreational property will probably be refused. Build your own runway? Good luck with that!
What kind of "living" did you have in mind? Even if highly qualified, government jobs go first to natives, second to long-time northerners, and third to other Canadians. I guess fourth would be foreign nationals, though the hiring process rarely gets past applications in the second tier.
So government employment is out. Private-sector employment is scarce and generally low paid, at least outside the major centres. If you truly want to live in the bush, there are almost no options that don't include, at some point, starvation. Trapping has all kinds of regulations attached, and a non-native is unlikely to get the required permits. And you need some skills for that job as well.
I hate to burst your bubble, but what you're asking borders on the impossible. I wish it were otherwise.