Looks to me it isn’t premier cricket (as in the highest standard) in Melbourne but highest grade in provincial cricket. Would probably need a local to confirm.
We had a similar thing last year, got an overseas who had played first grade somewhere a couple of hours from Adelaide. Was a better fit standard wise for our 2s than 1s. He was a top lad though and he had the summer of his life. He only cost us £150 in the end vi some agency and found him some local digs which he paid for, he also paid for his own flights. Defo worth it in the end at that sort of outlay, you are taking a punt but even if they aren’t very good he’ll probably spend what you end up paying behind the bar!