I would Just take it in and let mechanics replace all what? 24 of them. that may be a bit of a large investment, but I promise it will be worth it.
I've replaced Just the two main hoses Before and the car ran fine, but when I replaced all hoses I actually say a temperature drop by a whole bar, I checked the smaller tubes and they were full of gunk. the mechanic that replaced them said that wasnt good and was putting stress on my water pump
also a word of advice, Dont use the radiator plug crap if you have a leak, yes it may fill the whole but it fills everything else... = Blockage = more heat = eventually bhg.