You were too fast Dawg ! I was about to refer the same exact link.
I'm thinking to make it for my U151E (Auto 5-speed Gen 2 V6 tranny).
They ask to send them the parts....they modified them and send it back to you. I'll ask them about bring my car there and make the job. Will have to stay some days in NJ. For around 1000$ you have a good upgraded tranny. They would work with your valve body (VB) for stiffer shifts and customize your torque converter to elimnate some tranny power loss.
For serious performance, the tranny rebuilt is around 3500$ as Tony the Tiger did with his Camry (now running around 460 whp).
Mr_Chunkz to help you figure it out yourself. Like you probably know already, the manual tranny have a mechanical lock between engine and the tranny...on the auto tranny, it is an oil link turning in a turbine like wheel. It's why you always have some effeciency lost, because the link between the engine and the tranny is never completely locked. Nowadays, some auto tranny use a mechanical lock went they reach a certain point.
Torque Converter
http://auto.howstuffworks.com/torque-converter.htm
Auto Tranny
http://auto.howstuffworks.com/automatic-transmission.htm