If you want to sound exactly like him you need dimarzios YJM or old HS3's, a 50w plexi and a RAT pedal. Also G12-T 75 speakers. Also 0.08 gauge strings.
If you want a pickup that can do this and more, go for the Trilogies then. I own a set and it does everything from deep purple to malmsteen very well. It is a bit dark, good for bright strats to balance the tone, and it is more modern sounding, that's why it does not have much "twang" or "quack" as you said. Honestly I can't hear much of a true single coil in Malmsteen's tone...