Hmm I could be wrong but there seems to be a few things missing here..
he has
you don't seem to have any:
gasket kit - $250
valve springs - $500
Machine shop work for head and block deck for a perfect seal and to tap the nw timing belt pulley - $300?
New water pump, idler and pulleys - $300
new timing belt - $150
injectors - $500
fuel pump - $300
Z32 AFM - $300
clutch - $700
run in oil, new oil, oil filter, new coolant etc - $150
other (covers things like new hoses, vacuum lines, bolts and nuts you break, little seals from the 20 year old bottom end that might be leaking etc) - $500
how's that budget 300rwkw coming along now?