How difficult is it to replace the brake pads and rotors on the ML? On a scale of 1 to 10, one being an oil change to ten being rebuild a motor, what do you guys think?

My front brake pads are getting worn and my mechanic recommend to replace the rotors also. The car has 110k on it. He said at this point the rotors are to thin to have them turned. Also, it would cause warping if the pads are changed without changing the rotors.

What brand of brake pads and rotors do you guys recommend?

Is this a DIY project?

John