Is There Any one in Victoria , who can be recommended for a gearbox (re) conversion...

I currently have a double synchro Lsd gearbox that has been converted to suit a celica gt2 conversion project ive been tinkering with for a couple of years now, due to personal  reasons, i wont be completing the gt2 project, instead i am hoping to have the selector mechanisms reconverted back to the original sides of the gearbox so it can be used in a Mr2 again..  I was told this is an e series gearbox..
 
Any advice would be appreciated..