2002 Grand Cherokee radiator....

The bottom of my radiator let go last Sunday, so after a tow home I started thinking about what I need to do or should do. I have a new idler, belt, hoses, and radiator, now should I also do the water pump and thermostat? It is 4.0 six, with 176000 miles.

you can usually purchase a brand new radiator on e-bay or from rock auto for under $100. will be cheaper than having a shop fix yours that may have other weak spots too. if it still runs and drives well you might as well go ahead and fix it. even if you decide to sell it its not worth much with a bad radiator

I am going to replace the parts I mentioned myself but I want to know if I should do the water pump and thermostat while I have the radiator out

if the water pump is original might as well replace it. if its been replaced before you can inspect it for any shaft play or signs of leaks and replacing the thermostat every 5 years or so isn't a bad idea