Just wanted to say which way I went with my conversion. Mind you, it's not on the road, but this is what fits and stuff.
I went 4AGZE from an AE101, but obviously yanked off the supercharger. Got a T3 bigport to smallport adaptor plate so I could use the intake plennum off a RWD 4AGE with a bigport head on the smallport 4AGZE head. You'll need to source some custom bolts at a measured length, I think mine were around 50mm with the adaptor plate. On the other side of the engine a turbo manifold from AJPS (short runners so I don't lose as much kinetic energy in using a longer tuned runner system, won't matter much at high revs but the turbo won't last as long as it could, plan replacing it anyway...) holds the KKR330 turbo (probably a bit big, plan to get some kind of Garrett later down the track) on. The internal gate on the KKR was welded and an external wastegate was put on to the manifold in the form of a Tial 38mm, with 0.5bar spring. Because the manifold gives the turbo a high-mount, this simply goes down the bottom where the turbo would usually sit. Had a big fitting put in the sump, near the back of the engine, for oil return, nice and high. Put in a T-piece where the oil pressure sensor goes into the block, for oil feed, and also tapped into the water drain plug next to it. I used braided lines for everything regarding turbo, and when it came to fittings on the turbo I used pieces that were angled, so I could face them away from the exhaust housing.
