2012 focus 2.0 diesel LW fuel pump failure help pls

[Cmarches]

Hi there, i have serviced this car with ford from day one.
At 128,000 k they tell me i have a diesel fuel pump failure and requires 4 new injectors at a cost of $ 5,200 .The car is worth about 7k so i have basically written off a new car.
Can anyone help me find someone who can fix it properly for less? Seems like highway robery . Also paid $1800 for a Ford for the a extended manufacturers warranty (@ 60,000km) expired seven weeks before the Failure.
Can anyone help do it for less?