Hi, first of all i recommend you to take all your files from your lawyer and file it yourself.
The reason is: in the future some lawyers can become greedy and start charging you extra if they do checks on your file. They will be getting all emails / mails correspondense from CHC Islamabad, so i suggest you can do all by yourself.
In regards to the cetified copy of your wife ID: If you have provided a certified copy in english then you don't need a certified copy in urdu. All you need is the copy of original ID along with certified translation copy (which you already have).
In regards to original educational documents: Yes they require originals, but i never provided the originals as such my husband has his educational documents from Europe and i didn't wanted to take a risk of getting them misplaced. What i did is i copied them in color from Staples, and they were as good as the originals.
I was prepared that if CHC Islamabad asks for originals then i will courier the originals. But they never did
All the best
Regards,
Bright_Day