I'm not sure what you mean by get them up. For the first 2 weeks at least, depending upon how hot their climate will be, they'll be under heat lamps, so they'll be awake all the time (well not really, they WILL sleep, but you know). Unless you're planning to use heat plates instead. While they are generally considered the best idea and it's generally considered preferable to give chicks day and night (light and dark) periods like a normal day right from the beginning if possible, I would not necessarily suggest that if you're doing broilers for FFA to show. You want them awake 24/7 at least at first, so they keep eating as often as possible. Otherwise, they'll just get up when it's daylight and sleep when it's dark, you can use a regular light and a timer if it's dark where they'll live.
The bedding is a personal choice, and will depend on your setup. Are you going to use something like a pen or a horse stall? If you can afford to just keep adding shavings on top, aka deep litter, that works out fine. You do want to try to keep them as clean and dry as possible, because once they get a bit bigger they'll get their undersides quite dirty if they have manure to lay on, as they'll lay around a fair bit.
I wouldn't suggest putting anything special in their food and water, maybe a bit of Nutri-Drench when they first arrive if you really want to. You'll probably also want to switch their feed a couple days before the fair, too so that their manure comes out firmer and they're less likely to get themselves dirty again, most people will use scratch grains alone or cracked corn. If you have them where you want them weight-wise well before the show, personally I would cut the feed with corn up to a week ahead. It will give their skin and fat a nice yellow color.
I have an idea of feeding them for maximum growth, but I haven't tried it personally yet as I was kind of winging it with the broilers this year. But next year, I plan to use a very high protein feed for the first two weeks (here I get 28% medicated turkey/gamebird starter) and then blend it down to 20% over the next 5 weeks, and then cut with corn the last week. You can try something like that if you wish, or you can just feed whatever your local stores carry for meatbirds/broilers. Just keep in mind that the biggest gains you're going to get are going to be on the front end, not the back. As in, it's more important to have the highest protein when they're the youngest.
