Check post #4 in the following link. Considering 300te with 250k miles. The items replaced were either worn or close to being worn out. On your car if things like front struts, radiator,head gasket, belt tensioner, fan clutch, brake rotors have never been serviced they probably need it too.

If you do the water pump you should so the belt tensioner to, and if the radiator, fan clutch, clutch bearing bracket and idler pulley have never been changed do that too since they will be easy to get to.