I did an M6 swap last year and have a complete A4 set-up taken out of my 97 Z28. The trans was in excellent condition and would spin the tires going into second. The car had 70k on it at the time of the swap.
If you are looking to swap a T56 out of your car this would give you all you need less the computer retune. I need another T56 setup for a future project. I live in the Philly area and am willing to travel up to 3-4 hours to trade. If interested we can discuss any money or logistics.
Thank, Paul.