Disconnect the battery!! Tank as empty as possible. Car as high as possible both front and back.
Car stable on good jack stands!! Break loose fuel filler rubber hose from steel hose from filler cap.
Take care not to damage or kink the plastic high pressure fuel line between tank and filter as you
lower the tank!!!  You may choose to remove the exhaust for easier access. Mind the oxygen sensor.
It's not fun but quite doable.  I've done three now. The rest is pretty straight forward.
Take your time and enjoy a job well done.

All going well tank on bench with new pump in it !!
Anybody who wants/needs some fuel filler hose I have some spare , payed for one metre of 38mm suction hose and received two. 
A new OEM hose was $123 and 4 weeks plus out of Japan.
Can be had from the States for $65 plus freight but also 4 to 5 days away.
Best way is to fit it on as the tank goes back in.