Hello Clayton,
Basically in a shop you will pay a bottle 1 USD
basic spirit 4 USD, and soft drink 1/4 USD. thats in super market and shops.
In restaurants the price will double.
lunch fish and chips can come upto 4 USD. sandwitches 1/2 with cheese. These are average prices.
So 5 to 10 USD per day its good for your budget i believe. Do think about bringing your international license with you.
One other important factor is Water is 1/3 USD per litres !
So start packing clayton november is near!
Kayssaven