There are also ways of being able to utilize you superannuation as a home deposit. Or at least there were a few years back. It's very bad practice, although I wouldn't put it as much worse than a 100% loan. Personally, I wouldn't do either, but I can appreciate why some people would...

You guys are young, so you should have heaps of time to work on building up super if this way works for you.

Worth chatting to an accountant about it.

Good luck!!