-
xxcycle.com and SMI have it. Will cost you more in shipping than the part, but it is available. Bought from both, went smoothly. SMI particularly speaks campagnolo.
You might need some other parts like this one
I was at a bike market, and there was a classic steel frame with Athena EPS. Unfortunately I didn't pay much attention at the wiring, but he was using the battery attached on the bottle cage (triangular battery). It might be from a shop next to my place, if it is there I will take picture from the wiring.
Bit of a hiccup on my EPS installation, I need on of those Campag EPS internal Bottom Bracket cable guide widgets.
One of these:
https://kreta.ciclimattio.com/admin/components/specifiche/Ciclimattio/images/Importate12/CAMPAGNOLO-EPS-001-BB-Cable-Guide-for-EPS-2020-nero_6447.jpeg
And they are like hens teeth to find in stock.
Does anyone have one knocking about?