It is worth noting that if you can stump only 5% of the deposit. you will have to pay for Lenders Mortgage Insurance which is capitalized with the loan.
So hypothetically if you brought a property worth 100,000 you would get a loan of 95000+ LMI which might be say 1000 dollars. So you will end up paying interest for 96K.
So there is catch with the 5% deposit plans.