Good Luck Mate
I'm in Perth at the moment and I've noticed that none of the shops have much in the way of stock of APC props. (or 4-40 fully threaded rod)
I don't know if it's an end of financial year thing or a wholesaler is not keeping up with their stocks.

I'd also like to know af a good Prop Shop for APC as it nearly the only brand we use these days.