I do have several. $40 for every 5. The wrasse will most likely eat them if it sees them. I have a fairy wrasse in a 29gl and I put 2 berghia in the tank and about 1 month later most of the aiptasia is gone. I don't know for sure that they are still in there because they hunt at night. I would suggest raising them on the side and putting the babies and egg strands in the main tank maybe if you get enough in there they will take care it. It is really easy to raise them. Mason jars with plastic lids work great I use powder Gatorade containers. They need no light, flow, heat. The main thing is a plastic screw on lid to maintain SG and a lot of aiptasia to feed. If you get 5 you will probably have more eggs than you can raise. It takes about 30 days for the eggs to hatch. You could also setup a Berghia QT where you could put your rock in and let them take care of it. Let me know what you think.
Ebay doesnt like selling outside the auction so i figured this would be easier. These are the ones that came in on Georges group buy. Let me know how many you want. I have quit a few of all different sizes. I will get you a price based on how many you want. $10 each would be the max.