You might be able to use the rear rotors of a R34 vspec 11 or 2001 on R34 GTR?, as they both run the larger rear rotor 324mm by memory,maybe machined down to suit
These bolt straight on to R32 and fit the existing handbrake,I have them on mine
When i was looking for rotors I'm pretty sure DBA dont sell the larger rears and Projectmu were the only option
Also while you can use tin snips to trim the guard I used a 100mm grinder with a thin cutiing disc.I wouldnt let a 9 inch anywhere near my ally hubs,those things should need a licence to use
Ronin what needs to be done to get the 350z rotors to fit?