Try not to borrow any more than 50% of your property value....

Try not to borrow any more than 50% of your property value. Might be worth setting it up as a line of credit, so you can dollar-cost-average by investing at a certain point each month, quarter to get an average. With the stocks you chose, looks like they are fairly stable, but you have seen what can happen like the past 2 years. Should be able to get a basic line of credit for around the 6% mark, maybe a little higher.
Is the loan in just your name or jointly held - keep an eye on this, as sometimes people do it for a tax deduction for themselves when the loan is in 2 names - the wife doesn't work and can't claim the deduction.
The bank has no control over the shares I buy using the same structure, but may have changed due to the GFC.

Sounds like a good plan though