ORA won't sell to retail customers.
Once in a while there's someone selling the ORA green duncans, including me.
They tend to cost a little more than the wild caught duncans though.
Julian Sprung imported a nice colony of duncans over 10 years ago and distributed frags around to a few people/places, one of them being ORA.
Here's a pic of just one of ORA's mother colonies over a year ago. Pic was taken by Dustin Dorton who works at ORA.