Kung common ang engine mo, the hoses can be found in almost any auto supply. I'm not sure if this is the case with Hondas since yung 4d56 kahit sa Palengke nakakita ako dati (Batangas area).

Pwede ito sa expresslube. Just remember that you have to drain everything out not just in the radiator. This can mean having to remove the coolant plugs on the engine block itself and the thermostat. Sumasara kasi ang thermostat when cold.