dropped by my mechanic today he very thumbs up and positive on alloy wheels but very unsure on bumpers he said not good to try remove old bumpers he said its high risk on such an old car he said, what if the old ones break off and new ones dont fit? so super reluctant on that, but thinks the zetec s alloys are def worth it, also missing one nut for the wheels any idea where i can get one from?

also is true that taking old bumpers off and putting zetec s bumpers on the car is high risk? surely just a few screws and bolts??