First, drink something using Gatorade as a mix. I suggest Gin. Fill your camelback with it and watch movies at the theatre in Wainwright. Then, use the rest of your bottle of gin to bolster the double gin and tonic at JD's. When the bouncer accuses you of bringing that empty Gin bottle into the bar that's sitting at your table, deny. When you run out of money, drink water. Drink water until the taste makes you nauseous - unless you're in Wainwright - the water there is dusty and makes you nauseous on the first sip. There, you just tough it out.
So far, with Tonic Water and Gatorade as mix, you've stayed reasonably well hydrated. Keep pushing water. If you have it, take a couple Ibuprofen (aka Advil, aka Motrin) with the last canteen of the evening. In Wainwright, I only drink out of a bar glass, coffee mug, beer bottle, or canteen - it's the best way to track what you've consumed. Drink water until your belly's distended and sore. Don't puke it up.
When you wake up to pee - and you will - drink water until your belly's distended every time. If you puke, drink at LEAST as much as what you drank immediately prior to puking.
Sleep in, in Wainwright, that can be as late as 0700!!
Eat a greasy brekky. If the Brits are ruining the kitchen again, that should be easy. Take a multi-vitamin. Avoid coffee. Drink water and V8 until you are cured.
Or,
Puke, then, water. Same quantity of water that you've already consumed in alcoholic beverages and you should be good to go. I hate puking, but I love how good I feel the next day.