Yeah, I remember it a couple of years ago for sale at 'Bling Bling' in Christchurch. Luke-SZR's mechanic did the engine conversion around 3 years ago and you are right about the guy not having it certified before selling it to the dealership before this current owner bought it (still un-certified probably).
Another giveaway are the small brakes that usually aren't apparent in late model RZ Supras
P.S. I wish I could find that thread again, but I'm sure it is long lost in the black hole of cyber space... and could I get that link to the vehicle identifier thing please? heh