There are several others who are probably worth a mention too.

Bob de Vries of Kudu Services in Victoria is no stranger to double rifle work.

Vic Pederson in the NT although I'm not sure if he is still working.

Ralph Dauner in Northern NSW (could be Newcastle but I'm not sure) is the official Krieghoff gunsmith in Australia.

I suppose it depends what you need doing.

If it were me I would give Ross Waghorn a call and get a recommendation off him......as he is well and truly in the know re double work.

Hope this helps.

Happy New Year.

GG