If you don't have the coolant joint, here is a part you need for the heater line coming off the head....Toyota 87251-30200 coolant joint. The heater hose off this joint goes up and over the valve cover to the shut-off valve.
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Note, this isn't the only type coolant joint for this...
You will need the OEM part 16577-61040 - pipe between the lower radiator outlet hose and the water pump inlet hose, see post #16 here:
https://forum.ih8mud.com/threads/where-to-buy-a-full-set-of-74-radiator-hoses.1261450/#post-14022669
But you need to be sure your water pump has the inlet...