nissan note - Used fuel pump - disadvantages? - carbo

The fuel pump has gone and I've been quote £400 to have it replaced. I plan to sell the car in the next months so ask if it could be replaced with a used one but the garage said no. They also said something about you have to get them direct from Nissan. Is this correct? As ive searched Internet and there seems to be lots of used ones around for a fraction of the cost .

nissan note - Used fuel pump - disadvantages? - elekie&a/c doctor

petrol or diesel?