If I have to replace the water pump I'm going to replace all the hoses. I have no idea which kit to buy.

I bought original MOPAR hoses when I did my build...Team XJ had all the original tension clamps for the rad and heater hoses at the time so I bought those as well... With that being said, I wouldn't be afraid to use a quality hose from NAPA, Advance auto or even Autozone for that matter...Gates, goodyear { now continential}, Dayco, etc... will give years of service...Just don't buy a "no name" kit for the long run..

Gates makes a full kit for the 2000 XJ. Part number 21510. Includes upper, lower, heater hoses, and the small bypass hose. Also grab a new thermostat and gasket while you’re in there.