I'm sticking to the S54, for now atleast. They seem to handle a stock 1MZFE well enough and if Woodsport is prepared to fit them to their conversions then they're good enough for me. With the Adaptronic I could be pushing into the 170kw range so at some point an E153 will need to go in. Or alternatively S53/S52 internals and a ZZW30 LSD could be put into the S54 housing.
If anyone has a stock turbo exhaust they want to sell please let me know.
http://www.youtube.com/watch?v=VC3SIp3yzco <- that's a Camry Y-pipe going into a turbo exhaust :D
Also if anyone just happens to have a 3VZ/1MZ manual flywheel sitting around or knows of one sitting around somewhere I'm definitely interested. I refuse to pay wreckers >$200 for one.