How much will it cost to replace a water pump on 1997 chrysler lhs v6.

The waterpump on this car is turned by the timing belt, when you replace the waterpump on this car the timing belt should be replaced no doubt about it, the timing belt must be replaced and also the pulleys checked and if the car have 100,000 miles or more the timing belt pulleys must be replaced. the reason for this is that if for any reason the belt jumps or breakes then engine damage will occur, the pistons will bend the valves and this is very costly, there is no extra labor to do the belt it has to be removed to do the waterpump you would just pay for the parts, for example to do a waterpump it would run about $400.00, then to do it right with a waterpump timing belt and pulleys it would run 500.00,i think its a wise thing to do.this car only uses one pulley that needs replacing so i said pulleys but rather just a pulley that runs in this belt design. good day, heres a few diagrams to help explain how it works.