Mount Kilimanjaro is one of the most sought after peaks in the world. While it is a tough hike, and should not be underestimated, it is not a technical climb.
Trekking to the summit of Kili takes 6-8 days, and it’s important you choose your route carefully, and understand the limitations and risks of trying to do the hike on a budget.
There are also multi-day hikes in Western Kilimanjaro on the plains that are inhabited by the Maasai. These treks are much shorter and more suited to smaller budgets.