Here's the schematic of the cooling system I scanned from Haynes.   Even though the car is a 1977 2200, this diagram accurately depicts the cooling system on it.  I suspect the Grande Exportation models got the higher capacity systems as a matter of course.   New hoses have Blue revision clouds  The red shaded cloud is the connection to the heater that I have bypassed for the moment.   Since the inside climate control system is not to be installed right away, I redirected the hose that took hot water from the de-aerator to the heater fitting, and connected it to the tee fitting.  The heater is essentially bypassed. Other images of the new hoses.