You really don't need a kickstand or bell. I've been riding for 40+ years and carry a whiste around my neck on a ball chain. Bells and kickstands add unecessary weight, and if you carry what most people are suggesting, your bike will weigh in at 30-40lbs PLUS you! Hope you got some good granny gears cuz you'll need em. Spare tires don't weight much if you're going LONG distance. If your taking your time touring, I got a bag that mounts between the handle bars with a clear map pocket on the top. I've had it over 30 years now and it's still going strong. I carry a CO2 tire inflator system, and have had it fail just once in over ten years. That's averaging about 2500 miles a year, so not that much mileage at all. A small under seeat saddle bag to carry the essentials. I don't carry spokes, cuz you can true a wheel just fine if one breaks. You'd need to lose a couple in the same area of the wheel to make it unridable, but that is unlikely. If that should happen you're probly on the ground in pain anyway. Good riding shorts...DO NOT scimp on these. They have literally saved me on a number of occasions. And nutbutter for saddle sores. Cuz you'll get those too.
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seeking to balance risk and reward
Audaces fortuna iuvat...fortune favors the bold
Practice methodical caution...Les Stroud