What's with these Pakistani's?, they don't understand a simple concept of refusal to sell stuff directly by Russia that they have to justify themselves over and over again that they are getting what they need.
IF you are getting what you need then so be it, on the other end of the spectrum imagine Russia actually responded to Kayani and Co's overtures and started a defense relationship with you. You will not have to go all around trying to get Russian stuff from Ukraine and China but the Russians threw that out the window.
You can go ahead and buy second hand stuff from anywhere we cannot control that, and Pakistan buying SU 30 MKK from Indonesia...seriously are you that naive and that dumb? Go ahead and place an offer for purchase of SU 30 from Indonesia and be ready to be laughed at by everyone.