Looking fo a Logitech mouse Model M-CW47

Hi i'm looking for a Logitech mouse Model M-CW47. It may have been discontinued since i cant find any websites selling it. If anyone knows where i can buy 1 please let me know by replying here or emailing me at Minhxike@hotmail.com. I'm a quadroplegic and  this is the only mouse that i can use effectively because of its unique shaping. So if you know someone or a place selling this kind of mouse please contact me. thanks