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