some of our brothers need to learn a lot and it will take time
anyways, bhai driving an unregistered car is legal till 300km or 7-10 days. motorway police may pull you over for driving without plates. they also dont allow applied for cars to get card to enter motorway.
What you can do is, have a number plate made as ICT UR 2014 and drive. If anyone asks you, tell them about you residing in Islamabad and your temporary stay in the other city.
No one is going to ask you for the papers in the small town. Do not worry that much.
Motorway police sometimes really checks the ODO if someone claims that he just bought the car and is taking it to his native town before they let it go.
Insurance can be done on chassis