Can you define Humanely? Does Saudi allow you to become a Saudi Citizen?
1. You can start with Nikkah only case. At least your file will be in Queue. Once you have rukhsati, send proof voluntarily to the case officer. That is what I did and there was no issue.
2. I am not an expert on that matter. But you will have to be in canada to sponsor her.
3. Live with her in Saudia/Pakistan. Canada is not forcing you to live in Canada. You can apply but getting visit visa in not guaranteed. In most cases it is usually rejected.