As above, I ordered my fuel pressure regulator (FPR) from LR - but through my local independant, worked out much cheaper - get the gasket as well !
Removal is a right pig, a long narrow 10mm ratchet spanner is useful (I don't have one :x), as is a long extension wobble bar, I used a 3/8 drive version as it's easier to get it into place. On mine ('03 MY), the new FPR came with some of the fuel lines attached - but its easier to use the lines that are already in place (unless the leak is from a pipe union). The fuel cooler gets right in the way - I spent a while thinking that it would be easier to remove it, but it's just as hard to get out as the FPR :roll:
Wear gloves - unless you don't mind stinking of diesel for days after, and have a container ready under the car to catch the diesel that comes out when you finally get the last bolt undone !!!
When its all back together, prime the fuel system - turn ignition on, fuel pump will run, and you'll hear fuel bubbling at the head (check for leaks), fuel pump will stop after a while, turn ignition off, back on and let the pump prime up again. I did this three times before the bubbling noise stopped. Then fire it up - and check for leaks again.............hopefully all will be well, and you'll no thave to suffer the stench of diesel everytime you go driving !
Jim