My friend and I did a head gasket job on a 2001 rs and it had like 85k on it but the timing belt pulleys were DONE but the belt looked ok for the mileage.
Some people don't like to change the pulleys and water pump, but you have everything off of there, do it while you have a chance. DON'T risk it no matter what anyone else says
Because when you replace it all you now know exactly what you have and when you need to do it again.