Guns lots of crazy type guns, custom jobs you know the sort of thing. Oh and extreme close-ups of eyes and people eating very messily!
No no crazy guns, that gets way too cartoonish, just real guns that existed (some of those were pretty unusual). Keep it ultra realistic, no love stories, if you have Native Americans please keep thier costumes realistic too. Strive for realism, with picaresque characters, and stay away from a cast that all look like they just got out of high school, get people that look as if they have lived a hard life, get ugly scared and maimed actors preferably with bad teeth, lol.