Which show you going to? If you're passing you can just borrow my stuff to save buying it all
Heres a little list of what you might need -
---Tent wise---
Pegs
Hammer
Guide Ropes
Ground Sheet
Torch/LED lamps
Sleeping bag
Airbed w/ pump
Cushions/Pillows
---Misc---
Bucket w/ car cleaning products
Headache Tablets (if you're drinking heavy while there)
Energy Drinks
Camping chairs
Gazebo/Umbrella
Toothbrush
Deodorant
---Food Wise---
Disposable BBQs
Gas stove w/ spare gas
Cups (+ Flasks)
Plates (paper etc)
Cutlery (Plastic forks, cooking utensils etc)
Napkins (Tissues, kitchen roll)
Coolbox (Fill it with ice and you practically have a freezer for the weekend)
Washing up liquid (if you plan to re-use plates/cups)
Saucepan
Kettle (not electric, of course)
All your foods - Sauces (ketchup etc), Bread, cooking oil etc