1jz ta23

Hi everyone, i am building an old celica ta23 with a 1jz single turbo setup, engine and box are in and running now so looking to build a diff for it and with the r31 having a disk brake and lsd avalable and even having the same stud pattern 4x114.3 I am looking for an r31 being wrecked in the canberra or surrounding area with a complete 28 spline borg warner diff, tail shaft and handbrake assembly. Thanks in advance, Glenn.