Another Driving Story (which you probably don't want to hear) 2 weeks in Tassie too - basically started by eating wedding cake outside the big Koala (Western Highway Victoria) whilst broken down waiting for the RACV to turn up. Put the car on the Ferry on time in Melbourne to Devonport and then a clockwise drive around the island. I prebooked the whole lot using Best Western Hotels at the Tasmanian Tourist office in Canberra a few months before hand.
We didn't really treat it as a honeymoon - just a great two weeks driving around a top holiday destination. It doesnt seem like we've been married almost 18yrs now and we still haven't been back to redo the trip. But this time we'd have to take the kids et all