Outer Limits 4x4 Board

Just wandering if any body knows a good auto transmisson builder / repairer on the Sunshine Coast or maybe Brisbane?

Also will a t400 bolt up to a v6 commodore to replace a t700.
Can get the t400 cheap and it has a 2,500 stall with a stage 3 shift in it.

cheers
Matt

Different bolt pattern, so no, may be able to get an adapter somewhere but not sure on this