6040howard

Hi, could do with a little advise please. My son has left me his stylo with a water leak right next to the oil filter! I think its been going on for some time given the rust in this area. Dads are here to fix things!! I think it is the gasket on the water pump that has gone ? if so can anyone tell me how easy or difficult is the task of changing the gaskets? I was thinking of renewing the water pump as well given the mileage of 70k. Your comments appreciated
6040 howard