Several years ago was able to supply me with live samples of the NZ species.

But back in 2005 the NZ phytosanitary certificate (and fees for getting it) was $75USD IIRC

The are the cultures shown on my How to grow Sphagnum page

My fav for Cp use is a variant of a non NZ Sphagnum squarrosum species (my "Super Fluffy")