If your doing it for the power, do a 1.8t swap instead. With minor mods you can have one fast little yota. BUT, you're going from Toyota to VW... Something seems wrong there. I'm planning on the 2rz swap once the funds come around.
good thought, I would go with a VR6 for the torque, but there are no adapter for it. The bolt pattern for the 1.8t and VR6 tranny's are different than the TDI. I wish they were the same because I have a VR6 sitting in my garage