If you really want to do it, Order some hub centric ring spacers that will allow for eg a car that has 4x100 bolt pattern wheels, Allow you to fit 5x100, There are mixed views on this but all in all alot of people have done it, and they have been deemed safe, PLUS your not haveing to mod your car in anyway, But real good ones aint cheap, And now sure if they make them in pakistan?
I was going to do that once, But got told by people to just find a set of wheels in your cars size, its just a lot easier, im sure there are lots of wheels in 4 stud in Pakistan