If money isnt a issue, i recomend u go to khan motors and they do the job perfectly fine,
Khan motors is located korangi road just opposite SUZUKI DEFENCE MOTORS, when you go there park your car at the back side and ask for either Faisal bhae or Azam bhae ur work would be done. Avoid going from the front as chances are ul meet Babu bhae hes a real rip off but this work shop is the place for u and ur car. they are expensive but would get ur work done.
Jis gari ko koi aur haath nae lagate they take care of it, ul find, hummers, mustangs, rxs, any car u jst name it.