Hmm, I don’t think you’ll have much success in finding a guild that does the specific same thing as this guild (monster hunting) but without the status and title (BEING monster hunters). I mean, a more open and broader concept would mean you’re just a regular hunter, isn’t it?
If I understand correctly what you want, why don’t you join any of the many guilds that travel around and occasionally fight monsters, like feral worgen and whatnot? Most mercenary guilds should fit the bill.
Unless I misunderstood you about your character concept?