I've opened up tranny's, but that's as far as I'll go as you usually need special tools to do the rest. I also buy the official shop manual for a keeper vehicle. Can usually get them on EBay for $10, and beats the Haynes manual any day.
If I had access to the special tools I would have no problem pulling a tranny apart. I enjoyed working on them at school and when I was working at GM I worked next to the transmission guy. I would be his extra set of hands most of the time, and he was good at talking about what he was working on.

I'm sure some would be satisfied. Sorry you've had such bad experiences. 




