This is a very creative idea. Finally decided to stop lurking and actually dedicate myself to roleplaying for once.

I had an idea of a clan of thief/raider/salvager rats who's territory is filled with junk they've hoarded over the years. My only problem is figuring how their government would work out, especially with how decentralized the clan will be. I had an idea with a dominant pack's leader, referred to as the "Big Boss", holding the most power and influence which he enforces with a combination of his pack, wealth and various other packs that have allied to him. I'd imagine it would be pretty easy for a coalition/alliance of other packs to overthrow him and install a new "Big Boss". The other major packs and factions will however yield some power. Infighting would be super common and they would have somewhat complicated internal politics, with pack relations being a huge element.