WTB-Reduction Box Brakes

I am after both side rear brakes for a big nut Bus reduction box.Mine have gone missing somehow.Dont care what condition they are in-just need it all to be there.Would be a bonus if somebody in Adelaide had the bits.

Have a good look around your shed, you know how many things turn up missing lately ! They must be there somewhere

So did anybody have some laying around? Somebody must have done an IRS conversion on a spliity.