Coolant is leaking, coolant all over engine. Looks like it's leaking where the radiator hose goes from the top of the radiator and attaches to the engine. The leak is right underneath where the hose is connected to the engine. The gasket looks to be missing pieces. Is this the outlet gasket or water manifold gasket? How costly is the repair? The gasket, if I'm looking at the right one, is $2.99.

Thanks