Two porters and one guide are allowed for each climber. He can eliminate one porter if you can carry 20 kg.
A water bottle, raincoat, some candy, and peanuts will be most of the weight you’ll be carrying. Tents, food, stoves, and clothes are carried by porters.
It will be simpler to climb Kilimanjaro this way. In mountains like Elbrus, for example. You must carry at least 20 kg in your luggage, which includes rope, crampons, an ice pick, and clothing. Other than a guide, there is virtually little assistance. More about Kilimanjaro porters
