I have a mate playing with one so i'll ask him what he is doing for a bellhousing....he's had his for at least a year now so must have made some progress.
V160 or Tremec, i can't recall? If you feel like bringing the lot to Canberra in a trailer my machinist mate who did the hard bits on the GT8 would do a A class job for you.
Recently did all the machine work on a custom twincam head conversion for a Jag V12...one of those super fat historic racers, awesome work.
Drop me a PM if interested