Heater Controls 69 A body

Trying to find replacement plastic stubs for the heater controls, there are two plastic stubs in the control that holds the cables for the heat and defrost they are both broken and have gotten another set from a parts car and they broke removing cables. Does anyone know if you can buy replacements or what a person does with this situation. I am a little green at this restoration thing so need all the help I can get. Thanks