i think it was like $180 to change mine but i did it myself and the water pump is less then 50 if i remember... its not hard at all, for me it was cause i had 2 take off some stuff 2 get to it and i had no idea wha i was doin lol but once u know wha everything is its simple...
and also make sure u get a good gasket ...i had to use some shit in a tube and so far its workd great...
autozone or some place like that sells everything u need to do the job.
if i remember mine was like...take fan conver off, fan off,something behind the fan i think its called a cluth then a wheel thing and then the water pump...then clean where the old gasket was real good...put the new gasket then water pump and other shit back in order.....oo and dont forget to drain the coolant out of the raditor drain plug.... and some will come out when u take the water pump off.....lol i learned the hard way
