Usman bhai, firstly I hope you read my email sent to you a few months ago, in which you sought advice on buying PKDM or JDM. Nevertheless, you haven't mentioned your maximum range of budget, but if I were you, I would have gone for the zero meter car readily available at dealership. The most important reason being the peace of mind of getting a brand new car without worrying to know about its past history. As far as colour is concerned, it will only please you for the first few months, later performance of the car is what would please you in long run. So, even if silver isn't available readily, you may go for white as well.
If you are getting any 2014 or 2015 used model, do get the car thoroughly inspected from any trustworthy Suzuki dealership before going with the deal. Best of luck.