I'd expect that there are some (genuine and not genuine - key is the number of rays in the dorsal fin) on Aquabid.
I know that some people have been breeding them in the past, so perhaps you can find some of the breeding log posts or earlier for sale posts, and see what the state of affairs is - perhaps send a PM? There have been some for sale earlier this year. But they aren't the most easy fish to breed, as they require quite soft water.
It should also be noted that a lot of people tend to be more active on the forum in winter (with it being dark and less warm outside, people tend to spend more time indoors and spend their time with the fishkeeping and the forum!), so it's entirely possible that those who have bred these fish are currently busy doing outdoors activities, and will come back later in the year when the outdoor activities reduce.