Quad Bikes Queensland

Ideas for a three weeks tour to Australia in March / April ish?
I know this is a vague question but I really do not know where to start planning this! There are two of us, and we have three weeks. We hope to have in the region of £ 6,000, this is to include our flights. We want to stay in bed and breakfasts and hotels Cheap hostels, but no. We want to take in Queensland and the Great Barrier Reef, Uluru, and possibly the Great Ocean Road. We would like to do some adventurous things too, like parachuting and rafting, quads etc. Basically, the absolute most we can with the time and money we have. We do not want to lose a minute because this is taking all our savings (which will be March 9, not 08, so you can save!) and two loans and a once in a lifetime trip! Any help / advice / ideas at all would be appreciated. Things like all domestic flights, etc seem a bit confusing, and although I read the travel guides that I am more confused than before we know one thing!
the Great Barrier Reef is a good start that has the largest population of great white sharks in the world some people go shark cage into the water, but for the adventurous actual doing without a cage and if you want a complete experience, not forget your lucky ham hock is a joke I would go myself at some point, for example Why not dump your husband and place me lol I'm sure you have a great time you do have fun:)
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