Pls dont give up on the attestation and notarisation. It is part of the requirements if an applicant is not from any English or French taught institutions and country.
You have also done a good job in documents gathering and compilation...alizia. However, for completeness and accuracy, you can check the VO requirents for your country of application.
Since your VO is now London, you can check the following links to harmonise your position.
For Islamabad - http://www.cic.gc.ca/english/pdf/kits/guides/E37020.pdf
For London - http://www.cic.gc.ca/english/pdf/kits/guides/E37023.pdf
Cheers.
Olabisi