Replacement heads for a V-Core 2?

[OliverB]

Despite a couple of indifferent reviews, I bought one of these from Vaporbreak:

www.vaporbreak.com/en/vivi-nova-atomizer-kits/214-v-core-20.html

and I really like its tight, warm draw. No gurgling, no leaking. I've ordered three more.

Anyway, Vaporbreak doesn't sell the replacement heads (although Todd's review explains how to coil your own, I am terminally cack-handed).

Any idea of a head stockist?