I want to buy the old southwest shafts, requirements are as follows: 13mm above, before 1996, straight, the real southwest shaft. If you have, please contact me: wangzheng.cn@163.com.
Try contacting Don. I just picked up 2 from him. He might have more. See this link.
http://forums.azbilliards.com/showthread.php?t=320787