Coolant will be renewed as the radiator has to come off but as said , the connectors that are attached to the radiator inner cover is very important.
They must be cleaned and waterproofed as they'll give you problems at a later date.
Maybe a fresh airfilter and new spark plugs if you don't mind the extra cost but one thing that might need changing, not always, is the cam cover gaskits.
They can be re-used several times but If they are cracked and gone hard, change them.