Will,
After looking around for a long time and having a frustrating time doing so <img src="http://www.catsailor.com/forums/images/graemlins/mad.gif" alt="" /> I found that AHPC in Bendigo (central Victoria) was best for hounds. They are great for internet or phone orders and will have parts delivered in a couple of days. <img src="http://www.catsailor.com/forums/images/graemlins/cool.gif" alt="" /> Just have to remember to mention that the fitting is for a Mozzie. Check out their website.
http://www.ahpc.com.au/The hound fitting has the lower hole for the stays and the upper hole for the trapeze wires. See the Mosquito website and go to the rigging picture gallery for an image of the fitting. Just have to remember to mention that the fitting is for a Mozzie.<img src="http://www.catsailor.com/forums/images/graemlins/cool.gif" alt="" />
As for spreaders, try AHPC again or try Goolwa Masts and Rigging in Sth Australia. I had details from Tim on another thread. Goolwa were a bit slow to deliver because this stuff is just small change when they have an urgent job elsewhere but the quality of product is great.
If you really want to use the local chandlers in Sydney try Whitworths for a start.
http://www.whitworths.com.au/main_home.asp They stock most of the standard Ronstan fittings but it may not be what you want for hounds and spreaders <img src="http://www.catsailor.com/forums/images/graemlins/confused.gif" alt="" />. See if there are other local sources by asking the gurus down at Kurnell.
Regards,
Peter