Every pump listed except the inline one requires modifications to run reliably over long period of time thats because they were never designed to run on anything other than diesel
2002 was a changeover year for lots of things inc throttle pedal the latest ones were plastic and made in one peice as apposed to the earlier one that had separate pedal and switch
Never had to do it myself thank god but on most terranos have the butterfly valve thats designed to stop the engine quicker on shut down, do you think holding that shut manually would stop the engine