This is roughly what Cathy & I spend in time and money to attend the Nats.
We make a holiday of the whole event and try to discover new parts of Australia at each Nats we attend ( which explains the slight detour to Coober Pedy
)
http://fefcholden.org.au/forum/index.php/topic,12842.60.html here's the Diary
This budget doesn't cover what we spent on accomodation/food/fuel etc during the four days of the Nationals. And doesn't include the money donated to my mechanics retirement fund before we even started the trip.
We tend to stay in different places from 3* motels to unusual B&Bs, and we usually pay for meals at each stop. So our trip isn't done at a "budget" rate
here's something to think about