My drift car is a Onevia with a Rb20 in it and a RB25 box.
Completely stripped interior just a RB25 highflow, remap, 3" exhaust, front mount, Tein coil overs, welded diff and a 5 puk button clutch.
No problems drifting whatsoever.
Do it and have fun
The Cefiro cross member is the best to use as it will sit the engine a couple of cm lower then when using a R32 GTST cross member.
Just get your suspension sorted out and it will be easy to throw around.
A 1 piece tail shaft is fine and most big truck shops like Gibbs can make you one up relatively cheaply.
If you have any questions feel free to send us a PM.