Dear Rahimi, I am not the best person to ask, because I have the same questions and uncertainties as you!
It took 7 weeks for me to get AOR from Buffalo, which means only that they've just started to review my application. I included all the same documentation that you mentioned. And I too wonder if they will need more or if it will be enough.
I do know that Canada has streamlined the process for Family Class Immigration. I know of spouses who have received their Permanent Resident Status in less than 3 months after AOR. So I'm hoping the same will be true for me. And for you as well.
I would suggest that you start a new topic about the Islamabad office and see if you can find anyone who has had experiences there.
Also: This link will tell you the estimated processing times for Family Class Sponsorship at each of the offices in Asia, including Islamabad:http://www.cic.gc.ca/english/information/times/international/05-fc-spouses.asp#asia
I wish I could be more help to you, but I'm sure you will find someone on the board who can help you answer your questions.
I hope you are reunited with your loved one soon. I am from the U.S., so I'm never too far from my husband. I can't imagine how difficult it would be to be halfway around the world. Good luck and god bless.
ANOTHER THOUGHT: If you're in Canada, Rahimi, and your application is being processed in Vegrevillle, this link will tell you the approximate times it takes, once they start processing:http://www.cic.gc.ca/english/information/times/canada/process-in.asp#perm_res