Grab the smokemonster everdrive n8 pack and give that a shot.
A bunch of his roms are sourced from no-intro, but they are all tested by the community and he regularly updates as needed. He also has the some of most up to date mappers for N8 included, including several expansion audio mapper fixes for certain famicom games.
Just format and unzip to the sd card it comes preloaded with the os files, nothing needs to be added to get it working.