The junction between the water pump inlet and coolant tank hose is soldered up from common copper fittings.
Oil cooler line fittings are available from Gates Hydraulics. JIC 4, if I’m not mistaken. The early filter pedestal uses compression fittings which can strip out. Tap the pedestal to take a npt/jic nipple.
Heater core lines need to be stepped up/down. Master cylinder is still accessible.