@JeremyLove As far as I know you cannot make the built in posts hierarchical but you can enable menu order to put them in an order you want. You could register a new CPT and make them hierarchical register_post_type( 'hierarchical' => true ); I think there is plugins out there that will copy existing posts to a CPT
I've heard that terms are not supposed to ever have same names, but I also seen them have same names just fine... there are some crazy edge cases there