Given the cost of driving is close to the same as flying, I say fly. And don't hesitate to sell the car if that's what it takes. I know buying a car can be a real pain but that injection of cash to help you move would be a great stress reliever.

We rented an old bomby car off a little family company in Eltham once and they had weekly rates. Could be an option if you arrive carless and need to be able to get around for a while... like, to buy a car!