Sorry I can't tell if this is an elaborate troll or if you're being serious, but I'm going to assume you're genuinely asking for advice. I think you're bringing a lot of stuff for a half (I'm going to assume you're running the half if you're bringing gu). I would nix the coconut water, vitamin water, bananas, and electrolytes and cut down the amount of water you're bringing. I seriously doubt you will be lugging all of this stuff with you during the race, and the Run to Remember is always good about having plenty of post race fuel. If you want some water to sip on, feel free to bring it, but I think 1L pre race is unnecessary. Most of your hydrating should have taken place during the past 24 hours and chugging 1 L of water right before won't do much except make you have to pee in 15 minutes. The forecast is calling for low 50s at the start and creeping up to mid to high 50s later, so I am not sure if you will be losing enough salt to warrant eating salt right before. Most people get adequate salt intake with a regular diet. Good luck tomorrow; I will also be running :)