Any help would be appreciated!!!

I have been offered a V6 ST24, MK2 on a W plate.
When I say offered it might be just that, no cash!!

Story is that it failed its MOT last year on the ABS pump. It buried so deep apparantly that it's not worth paying out for. Anyway the bloke has bought a RS Focus and left this ST on the drive.
Now he just wants shot of.

Is this a job I can do myself or not?

What is involved in replacing the ABS pump?