I have no worries about transmission. I have a local trans shop who is best described as the rocket scientist of the world of the automatic transmission. I already talked to him about this, I showed him the design, and he showed me pictures of an RS6 taken apart in his shop. He said it was one of the most interesting jobs he had ever done. He also showed me time slips from what that guy did afterwards.

I don't really care if I have to put 6000 into transmission, he is willing to give me 3 years unlimited miles warranty, my family has sent many cars through him. Not cheap, but great work.