Thanks. Sadly they don't provide airport pick up which rather inconvenience.
Looking at Hertz with Nissan X trail for 11 day at around AUD480. 4k excess.
Ya buying local travel insurance to cover the excess is cheaper buying their 0 excess which cost 300 more
For Bayswater, they are abit rigid (hence the low rates) and they dun allow you to return the vehicle at other locations.
In that case, try Avis.
Most of my car rentals are from Avis, I find their rates lower than the rest of the reputable car rental companies. Maybe my trips are usually during off-peak season.
For eg: No additional driver fees.