You're in adelaide , I can't think of any suburbs there that require 5-10yrs of saving for a deposit. In fact one of mine over there I used 9k I think.
Also is there any equity in ip you can use?
I'm curious why you don't have your own deposit rather than relying on family. I mean that's cool that they want to help you out and everything but if you have no disposable income or poor spending habits how will you go with repayments?