Your 820 cannot be approved if you are not in Australia. So if you are granted a tourist visa, it would let you come to Australia and remain during more 820 processing. With any luck, the 820 will be approved while your tourist visa is still valid, otherwise you'll need to leave Australia again or apply for another visa to remain longer.
Hi. I really think that there should be a big notice put up for anyone coming out here to Oz -saying- DON'T DO IT UNLESS YOU HAVE MILLIONS. Australia has become a two class society. The Rich and the poor. No in between. I do know since I am an Australian brought up in the SE of SA! I went to the UK when I was 21 and returned (my family is here) when I was 51. I was so unprepared for what had happened to my Homeland. There is NO affordable housing here. The rentals are dire! Medicare is good but very limited. And anyone over 40 struggles to get work! The ageism here just doesn't exist in the UK. I have now had to dip into most of my savings to survive and found the horrible future that awaits all over 55, single, low income women here in Australia. Homelessness. The Govt will not build the units needed for low cost living and the private sector simply want as much rent as they can get. Plus my pension is frozen.
So incredibly disappointed in Australia. In my youth it had such potential.