Anyone know of an Australian group who makes these? http://www.diamondattachments.com These folks make them but with the exchange rate and shipping I'll be paying about $5,000 more then I would for a locally made one.
Mate , Your link just goes to their home page,So not sure exactly what your chasing . This mob is in Toowoomba ,and make most things Dozer related . http://www.homan.com.au/Homanploughs/Homanploughs.html
Unfortunately they don't really have a lot of info, here is a link to one of th few pictures they have http://www.diamondattachments.com/avactis-images/111F-1_33.jpg It is a full dust proof aircon cab that goes under what was the ROPS of a Dozer.
Google search come up with this mob . http://www.ropsaustralia.com.au/services/products Only other suggestion would be try earthmover machinery wreckers,that may have a ROPS cab to suit your machine .