1984 Nissan 300ZX, How hard to replace the water pump. Pump is leaking on 1990 Nissan 300ZX

1984 Nissan 300 ZX, Water pump is leaking, I have never done this before, but I am a Honda Mechanic by trade, and a neighbor asked me to fix his car.

Asked by for the 1990 Nissan 300ZX
its got to be a 1990 cause they did not make them in 1984. lol its a 5.5 hr job plus parts, so it is a sizable job. go for it you seem able. like a honda v6 no worse
Yes, it can be a 1984 300ZX. I own one and I may need to change the water pump as well.