get a haynes manual from autozone. u can start with the easy stuff the hoses and clamps. then move to the radiator. water pump is on the drive belt side at the bottom. the coolant leaks can be hard to find after the car has been running. prices can be below $50 thru $300. u can do the hoses and thermostat yourself some people do the radiator. the radiator and water pump would be the most expensive. get an aftermarket radiator with a lifetime warranty if that is the source.