This is going to be very hard to come by, and will the issues with shipping, even harder. I'm not sure if they've been capitve breed, but I would reach out to the wholesale places that are breeding clown in bulk, as they may have, you can then arrange something with a local shop.
Yeah I've been searching for about 3 years. I missed a user on R2R selling his by about 4 months and I havent seen them since. I got in contact w/ someone in AU, but it didnt work out. Wholesale -> LFS isnt a bad idea!