2000 ZX2 Water pump replacement

How hard is it to change the water pump on a ZX2 2000 with the duel over head cams?
I have changed out the tensioner pully and the idler pulley a few months ago. So I was just wandering how hard it would be to do the water pump.
1. How long should it take?
2. Any special tools?

No special tools, but you will have to invest a little time in the matter. There is plenty of junk that needs to come off so you can get to it and do what ya gotta do.
The only trick might be making sure you keep the timing set right.