what is the deal with my 225 /six compression?

the car had been sitting for nearly 6 years before i got it.. there is some oil coming out of the head around the 5th and 6th cylinders, at least that is what it looks like.. a small amount of oil.. and then the valve covers seem to be covered with oil.. is this normal? are replacing these gaskets reasonably easy with the correct tools?

Replacing the valve cover gasket is pretty straight forward. But the early slant 6's also used spark plug tubes that seal with an O-ring around each tube. The spark plug actually holds the tube in and makes the seal. You may need to replace the tube seals also.