I don't think there's any reason to worry. Most of the current products you have will work fine.
My (limited) experience with cycles has been that their paint is softer than car paint, so use mild polishes. The S100 products should work great. Test them first to be sure. Also consider using a glaze if you find the SEPC is too aggressive.
Clean the tires with an all purpose cleaner. Most riders do not use tire dressings so be careful with that. Focus on cleaning the wheels and hub areas, esp the rear as it gets quite grimey.
Keep dressings off of seats and grips, for obvious reasons.
Water should not be an issue but use common sense. Remember cycles are exposed to the elements, get ridden in rain, and don't have problems. Cycle mfrs test in extremely wet conditions when they design the bikes to ensure reliability so a little water from a hose isn't going to hurt anything.
The few times I've detailed bikes have reminded me that they need a lot of focused hand work to get looking really good. They always take more time to detail than I thought. You'll probably notice where you are deficient in supplies and technique. Bring along more cleaners, pads, towels, etc than waxes and paint polishes.