Rotors of my Khyber also needed replacement as I had applied tool on them three or four times and they had become thin. Visited Chah Sultan, I wanted to buy complete hubs but Khyber parts are difficult to find. I was able to find rotors only. They were kabli and had around 75% thickness. Bought them for Rs. 1400/- and applied tool to be sure they aren't already bent. Rs. 600/- for tool. I had to replace front wheel bearings also. The rotors are working great now, no vibration in brake pedal. Koh e Noor autos is selling Khyber rotors of TRW brand. He claims they are made in Germany.
Regarding Frixa brake pads, first time my mechanic arranged them for me, I don't know the shop name. 2nd time (with rotors) I searched many shops in Saddar and Chah Sultan but no body had Frixa brake pads for Khyber so the car work was delayed. Finally a friend found them for me. They were available at Islam Autos G-10 Islamabad. Phone number 0333-5344791.
Frixa brake pads don't produce any noise in my Khyber. They are not made up of very hard material. I changed them after 20,000 Kms.