i do have the complete diff but are you talking about ra23 diff or 200sx?
i've got a complete irs off 200sx its not modify for anything.
i also have the front ends but not sure what you are after.
the parts have rust here and there so dont know if you are interested or not,
let me know what you want and i can tell you wat the condition of it.
the apron is gone as i cut it up for my own purpose.
i have the guards but its rusty on the bottom,
just name the parts and i'll see if its available.