Clenched butt-cheeks
It was pretty expensive to suit these two-thousand people with armor. It wasn't as expensive as the sum of ores, for example, which all of these newcomers were supposed to get as a payment, but the sacrifices were still large!
What made the whole procedure even more expensive, was the concept of custom built armors. Every rhino had different bodily sizes, regardless of how they looked the same, so the armor designs often had to be altered by size! It was hectic.
They had to pour two or three tons of ores into the advanced, smelting pit, just to get proper iron boots and breeches for a few hundred people. Simple stuff like that required a lot of work!
The procedure seemed endless through the first couple of days. The eighty or so people who worked in blacksmithery, however, felt more excited than ever about this task.