How much for leaking valve covers and replace oil pan cost? on 1996 Oldsmobile 88

I have been losing oil and found out I need a valve cover job and a new oil pan??? What should I expect to pay here??

The oil pan is available at your local Napa auto parts for around $110 and the other prices are available on Just choose valve cover gasket replace and oil pan reseal and add them together with the cost of the oil pan