Don't I have to remove wires, etc?
Anyone have a tutorial on this?
This really depends on the make and model of the bike. If you look on youtube a bit you can often find tutorials on how to do it for your particular bike.
For myself, I carry the awful little tool kit that came with my bike, small needle nose pliers, small snips, a very small locking blade knife, tire pressure gauge, CO2 canister (and maybe a spare) duct tape, a few cable ties, tire levers, and a spare tube.
On an extended multi-day tour I'd probably carry an actual bike pump, some more spares (brake cables come to mind), chain lubricant, a headlamp, and a (very) modest amount of camping gear.
One thing that is a bummer about integrated lights is I liked being able to use your bike light as a flashlight in camp and for emergency repairs in the dark.
I'd strongly recommend both tire liners and a tube sealer (or the pre-sealed tubes Slime and others carry) just to minimize the risk of flats.
I also carry a bottle or two of water, sunglasses (or goggles on a cold day), bike locks, a helmet to protect what little brains I have left, and often times a dog or two.