Hi,
We are in a very similar position.
Could you apply for a 482 visa, giving her potential employer access to skills much earlier. It also may derisk it all for the employer. I’m sure you’ve realized that it’s actually a 4 year commitment really. 2 year waiting and then 2 year employment offer.
So the 482, if available could act as a compromise, ask that they apply for the 187 visa at the same time. I’m told it’s possible. Of course it doubles the visa cost.