Reputable gearbox rebuild?

Howdy,

Wondering if anybody knows of any reputable workshops in Brisbane to perform a rebuild on a 60 series 5 speed gearbox? Please share any experiences as well if applicable.

Had the gearbox done approx 10 years ago )can't remember the name of the mob but certainly won't be going back to them (long story), so chasing someone else and with a good reputation.

Cheers
Shane