Heater line part identification help

Hey Bisblue that is a factory piece and no it isn’t reproduced I have looked all over. I have a 73 and by the looks of your overflow tank you have a 74. Can I ask you a question, which vacuum hose goes to the heater control valve and which hoses go to the vacuum canister beside the heater valve and one more the blower motor where do the wires go and hook up away from the motor. Thanks
As best as I can remember a hose comes from the intake to the vacuum canister, then from the canister into the firewall, then the other hose comes out the firewall and to the heater valve. I will shoot a picture when I get a chance.
My car seems really stock, but it also got "tuned up" by a sixteen year old 8 years ago....