HSV GTSR gearbox failure, help please

CAn anyone guide or tell me where I can source for a gearbox for my GTS-R 5.7 V8 year 2000?

ANy gearbox from the other HSV variants which can directly replace my current knackered gearbox?

It's very difficult to find in the UK and I am having to look globally for the gearbox.

Thanks in advance

www.melbournetradingpost.com.au
that should solve your problem.... you just then have to work out how to get it back to the UK