I've seen the same symptoms before. Cable adj. maybe, but I've seen most with clutches and steels seized together, broken planetary, or the one way bearing thing(sorry, don't remember the term). Basically, ran out of fluid for one reason or another, and trashed. Good luck.
Just out of curiosity.... Why?? The Supra has excellent lines, why make it look like a Ferrari? Especially with an n/a. Ferrari could be missing on 2 cylinders, and you still wouldn't stand a snow ball's chance in hell of winning a race...