Emulsion tube

I’m in the midst of rebuilding a '64 engine and so far focusing on the top end and bolt ons. I’ve rebuilt the stock solex 28-pict-2 carb which required one hell of a cleaning. The head on the emulsion tube got pretty chewed up during removal as it was stuck fast. Although it will go back I’d rather replace it. I would have thought you could buy these new but I can’t seem to find anything online - has anyone know where to pick one up ? Cheers