What about the Broadmobi BM818-T1 then? 
FDD-LTE:B1/B2/B3/B4/B5/B7/B8/B28/B66
TDD-LTE:B34/B38/B39/B40/B41(200M)
I believe that that is all the LTE bands that are currently used in Australia.
Don’t know what the “200M” means.
One downside is that it is only Cat 4 but that is much faster than the service currently available to me anyway.
VoLTE?