It sounds to me like you're pretty well set. Go ride!

You need a backup plan for weather and breakdowns. That's up to you, some of us stick to fair weather and some ride year round rain or shine; some of us have cars, and some have someone else with a car, and some lucky folks have subways.

There are tons of things you can carry. Some bikepackers don't carry as much stuff as some commuters. I have found that tire irons and a small bike multi tool and a knockoff mini Leatherman suffice for me. I carry a spare tube and a patch kit, swap the tube in case of trouble and patch later in my spare time if I have any.