What is the price to expect for an '83 Porsche 944 engine rebuild or replacement?
 

The oil pressure (flashing oil light, down around 2 bars) in the car was low, and my customer pulled over immediately. Oil on the dipstick is clean and full. Unfortunately now the car won't start. Its hard to tell whether it is the oil pump or the entire engine-My customer know oil pumps are around 750, while the entire engine is double that, but what could i expect the average labor on something like this? (My customer live in Phoenix). It would be nice to know before my customer consult a mechanic. Thanks!!!
AVDI Abrites