yeah with the amount of outlets and zones you want. I would be wanting it less than 10k also. but who knows.

mine was install in December 2008 how ever January 2008 was when i made the original deal, as all the ducting had to be installed during construction. then December they fitted off all the components.

So i can't say what sort of deal these guys would give you now. but at least with prices that a few people here have given you at least you know what ball park you should be in.

Thats the people who did mine.
funny the images of houses on the main page the bottom house is my Inlaws haha.
http://www.wintonair.com.au/

EDIT:
This is the new controller they do, not shown on the website, dont get the older style controllers they are shit, Hard to use and program.