That might be NSW, but i know as of june or july this year the inspection rules have changed in Tassy.
They actually have to hoist the car up and manually check brakes, suspension components ect. Only reason i know is i went to the place that will be doing my inspection and ask what they check, whats legal and whats not ect..
Towe, Just grind it smooth, thing layer of bog, sand, and then put deadener over it... good luck :)