Heater/Cooling Hose Hockup Question.

[man7sell]

When I bought this truck (1976 Stepside Chevy C10), the heater core was disconnected. probably because it leaked. So I have bought a replacement core and:
Thermostat housing (with extra hole for a hose connector)
Heater supply hose
Heater return hose.

The way the truck is hooked up at the moment is (shown in yellow) thermostat housing to top of radiator (right side in the photo)
Lower left not seen in the photo from the bottom of the radiator to the water pump.
Lastly also shown in yellow, top left of the radiator to the top of the block.
Shown in blue is the disconnected heater hose to the top of the heater core. Bottom of the heater core has nothing attached.

Additional info, the water pump has a blanked off port shown in the second photo.
Also no AC.
Haynes manual I bought is as useless as I remember them.

Anyone have the normal hookup for this non AC truck?