Depending who your insurer is they may have an "uninsured driver clause" in it which means you can class him as basically being unisured and make a claim through your insurance then they will chase him for the cost of the repairs.
I know this is the case with mine through NRMA
Off the NRMA site
Uninsured motorist damage
If you’re in a collision with someone without insurance, but they’re at fault and you have their details, we’ll pay for the damage to your car up to $5000.