Call TRU Head Office, tell them that you've been searching for months and haven't found one locally and get them to source one for you from another store in Australia. Because MP10s are a lot more easier to find in some TRUs now (The_Scream_Man found what he described as "a wall" of them at Chatswood TRU and I found 3 sitting there at CH TRU) -- so Head Office can source one directly from one of their branches that has them in stock.