ok so i was driving the car on the freeway i hear boom . then i pull over checc it and the hose to the radiator blew. then i tow it off go to autoZ and get new on and coolant . i replace then i bleed so air can come out and refil .then it wont turn on . so i notice theres no fan . so i expose the fan wire then connect it so wen i turn the car on the fan will work by itself and when off it will turn off. now theres a leak somewere else. i take to a mechanic and he says its the water pump . and i might need to change timming . 214000 miles . how much if i get parts myslef? and how much should it normally cost