Just more of a heads up, In The Escapists 2 there is way over 50 unique items in the game.
Don't worry too much as this should come naturally over the course of the 10 Prisons you do. Just keep crafting new things you come across and eventually you will unlock it.
Favours help as they offer new items to create every now and again. Plus it shows you on the map where that said item you need to create it is.