I can get you one if my LFS still has them. You would pay 11 dollars for the star, and 25 dollars for the shipping. I won't guarantee an awesome linckia though.
I got two Linckia Multiflora starfish with my live rock. They have since split. There is at least 4 in my tank now. I'd give one or two up, but I don't have a clue how I would un-stick them, ship them, and transport them (and some days find them) without hurting them.