I would just like to share what I have completed as when I started I could not find any one that had attempted this before.
I have put a RB30ET in to my R32 GTST drift car.
What I used is the following.
RB30E inc loom and ECU
T3/T4 turbo 10 psi
VLT exhaust manifold with 15mm spacer plate, and HDJ100 land cruiser studs and nuts.
braided oil feed line, and custom drain line.
GTR 444cc injectors.
Forward facing plenum, its a custom one I found on gumtree with twin RB30 TB.
Sard fuel pressure reg. (as both my factory ones where seized)
R32 AFM, but will be changing to Z32 as the R32 will be maxed out (180rwkw)
R32 GTST engine mounts with nismo rubbers.
RB20 fly wheel, clutch and gear box.
Nistune ECU.
custom intercooler piping, and I had to mod my blits FMIC as it was a return flow type.
expect to see 200-220rwkw, still needs to be tuned.