You do realize these are copies of proprietary lens line Veydra, who holds legal rights to the design and distribution of this lens design, rights held by Ryan Avery, who is current litigation over this copy infringement. You might want to rethink getting involved in the distribution here in the US, where Ryan holds the rights. See the Veydra website, he is not out of business and still holds the rights to the Veydra lens designs.
Cheers