Make sure you get the gasket with blue rubber in certain areas. Only about £15, worth a punt to see if it fixes it. Be very careful with torque on the 5mm bolts it's not tight, 10nm lower 5allen, 20nm top 6allen I think, search a thread on here to get it right.
If it needs a pump then buy a new one is often advice, don't recondition as they leak again quickly.
Removing the front two fuel pipes is tricky, be patient so as not to destroy them if softened. If they are blown and softened I would get new before starting the job and spring clips....