Source for Campagnolo disc hubs?

[Gsinill]

I guess I know the answer already, but is there a source for hubs only?
E.g. for the ones used for the Levante wheels?

[CampyGrampy]

Nope. When I need something like that I usually look to White Industries. If you don't see the configuration you need on their website, then you can call them and ask for something custom. They have been more than happy to do it each time I have asked.