need advice on a Chrysler Sebring

I am buying a Chrysler Sebring 2002 I have people
telling me it has a blown head gasket and some
people telling me it don't its not over heating but
the oil is a milky color it shuts off while I'm driving
it and it takes it a while to start back up the
previous owner I got it from said it had a whole in
the radiator so I had to make sure I kept water in it
the previous owner also said it had been sitting up
a good two years before I got it