keep an eye on ebay, there is a guy from Jordan Utah that will post them occasionally.
My first thought when I read your post was "dont we all"

I currently have Dad's HD in the shop getting a good used one, and hopefully the late 94+ top cover with the removeable shift tower. 2 on ebay till I really need them, then they are sold...

I have 2 3/4 tons with cracked ones, so I am short on them too..