Sorry, but because all my animals are collected and maintained for research, it would cause me a lot of grief if I started selling them. In fact, it would violate federal and university regulations.
P. ciliata are common in the seagrass beds in the Florida Keys and several of the animal collectors in that area know P. ciliata and can collect them. I would try contacting some of them that advertize in FAMA. I used to get animals from "Tom's" and a few others.