Just to confuse the reader somewhat more, may I suggest you appraise/inspect existing cars that are for sale in South OZ. There are three cars listed on car sales.com under the AC heading ranging from 60 to 140 big $$$$. I presume they are registered in this state for that sort of money.
Looking at these and others may help you decide if you really can do better at building what you want? Whether you really want to build one for your own reasons or if it was a bad idea in the first place.
Its really all up to you.
