I have yet to see a single Soli come in from Australia, there are no efflos in AU waters.
They're not documented on that chart, but I can guarantee there's Efflos here part of the problem with Solis is they're typically collected on the west coast, and as you can imagine, shipping from the west coast to LA is a bit more than many collectors/exporters are willing to do.
Are you sure they aren't solis? According to veron there are no efflorences in Australian waters. Most people don't bother to take the time to learn the difference between the 2 and just call all "flat platting acros with no branches efflos"
Either way I'd be willing to pay a good chunk for an AU soli, or one of the few other interesting platting branches acroporas that grow in AU.