Thanks to everyone for their comments,
I have decided to go for the OB Swan but haven't ordered it waiting for the Brisbane Caravan Show to see what I can get there.
So far I've decided for the Fiamma Awning, water pump, water tap in the A frame, gas bayonet, extra water tank, battery and LED lighting inside the van.
In regards to upgrading the payload of the van, is this really necessary? if it is, should they do it free of charge or do I pay extra for it.
For the brake controller, I can get in eBay the Tekonsha P3 cheaper than the P2. Any reason why the best or newer of the 2 is cheaper than the simpler model?
Finally, there are not many Jayco dealers around Brisbane, but any suggestions between Brisbane and Tweed Heads?