Ac/heater install question

Hello all, I have a 1970 Duster with original ac and heater.

It has the original ac heater box with all the other actuators and vacuum lines.

But the previous owner took out the ac compressor and disconnected everything involving both heater and wiring. I have been able to rewire the climate control unit but I cannot hook up the vacuum harness properly. I have looked in the manual to see if I can find a vacuum hose diagram but I haven’t found anything.

NOTE: I’m only trying to hook up the heater and defogger in time for the winter (don’t have a compressor for it yet)

Could anybody tell me what vacuum hoses have to be connected in the engine bay in order to get the actuators to work properly when switching from “heat” to “defog”

Let me know if you need any pictures.

Thanks!