6244 9999, they're in QBN on Gilmore Road (just off Canberra Ave). It's where I had all my engine work done.
To be honest, the "because gearbox is out" is semi-logical. Labour for most general workshops on a gearbox removal and install is kinda steep, so if you're only running a standard clutch or if it's getting warn out, it really is a reason to do it now to save the couple of hundred dollars labour having to remove the gearbox next time when it DOES die in the ass