Don't know if a wholesalers license is gonna help much... The best source for these guys seem to be retailers and private breeders... We got them from a breeder last time and paid $10 a piece and free shipping since we ordered over 60 of them... I have a couple in my sump munching on aiptasia and trying to get them to breed for the last couple months now... but I have yet to see any babies...

although from time to time I see some dried up white specks just above the waterline that I believe are baby nudis that were dried up as the water level in my sump lowered (haven't gotten my ATO set up on this tank yet). I will post as soon as I see babies...
Have you guys tried peppermint shrimp? IME Peppermint shrimp are much more effecient! Only time I would recommend berghia nudis are when you have triggers or wrasses that make quick meals of the shrimp. Otherwise peppermint shrimp seem to do the job MUCH quicker! In fact, I just picked two up to clean up my 12g of about 15 aiptasia or so on monday... (yesterday) and tonight I checked the tank and I don't see a single aiptasia!
Just my opinion...