2004 Honda Civic timing belt replacement, camshaft, water pump

I'd guess at about $600, maybe less. You don't mean the camshaft, but rather the cam seals and crank seal.

timing belt is around 20 to 30 dollars and labour wise in the book it s says 3 hr job

Had my timing belt replaced last year, which included the water pump and at the local Honda Dealership cost around $650