Afraid it's unlikely to be good news for yo, VACCU referral pretty much a certainty and they take a very dim view of any domestic violence convictions. They consider restraining order on grounds of safety domestic violence, especially when it comes with a conviction. The VACCU process will probably take at least 6 months and potentially years. The VACCU unit is also a notorious black hole, it's very difficult to get to speak with anyone there either through email or phone. Generally, the only way they will speed an application up is on grounds of ill health or if there are strong extenuating circumstances to grant entry, unlikely to be the case for a WHV. Again, doubt it's what you want to hear but I think it's very unlikely your application would be approved. Australia imposed what is essentially an outright ban on anyone with a domestic violence conviction from entering the country in 2019. Just think it's best to be honest about your chances before you go chucking lots of time, effort and money at it.