Bintel dobs are rebadged GSO dobs. There is a Bintel store in Melbourne. There's a link to them in their ad in the right margin.
Me too +1 for an 8" dob. Even a 10" & 12".
Andrews Comminucations has GSO solid tube scopes (look under the Guan Sheng heading) & Skywatcher collapsible dobs (Skywatcher heading).
An 8" scope is more than capable of showing galaxies. The key to all deep sky objects for best viewing is to be at a dark sky site away from urban light pollution. I have an 8" dob that I mainly use from home - I tend to keep my big 17.5" for use at dark skies. I LOVE my 8" dobbie!