Depends on how much you want to spend. To do it properly you will need to take the Engine out full forged bottom end with new Nitto/Tomei/Whatever Oil pump new collar, extend the sump. But to do this you need a decent budget. HOWEVER, if you leave the standard pump in there and if its standard internals you are risking it pretty hard.
Other than that if you want that power as cheaply as possible what Grant said:
HKS GT-SS (or Garrett -9s), PFC, ID1000 and Nismo AFM's
Nismo twin clutch
a GOOD, PROPERLY DONE catch can setup
and possibly a koyorad 53mm Radiator.
Personally id go the -9's.