An automatic transmission from an Audi 5000 FWD automatic technically would work but they were designed for an engine producing maximum 220 horsepower for the 1991 turbo and much lower than that for previous years. I would imagine the torque from even a stock SBC would be too much for it to hold up with any spirited launches unless it was overbuilt for the application like the 016 5 speed seems to have been.
A more modern auto option might be a ZF 5HP19FL transmission from a Porsche Boxster, Audi A4, A6,A8 or a Volkswagon Passat. See the link below for the years it came in.
https://en.wikipedia.org/wiki/ZF_5HP_transmissionThe Audi A8 with 3.7 40V V8 engine was rated at 260 HP used this transmission so it might be okay behind a mild SBC.
Advanced Automotion still has a controller kit listed for this transmission on their site but states PCS has discontinued it.