I noticed a leak under my 92 240 a couple weeks back and later saw the engine temp going higher than normal before returning to the middle, as well as occasional lack of heat from the heater. A quick check confirmed lack of coolant in the expansion tank and today I spent a few minutes looking and noticed a crack in the plastic side tank of the radiator. The odo broke at 150k a couple years back and there's probably another 20k on it by now. I've owned the car since 2009 but don't know how old most of the other parts would be. I'm planning on new radiator hoses, are there any other recommended preventive replacement items while I'm draining coolant and knocking out the radiator? Water pump, etc?

thanks!