I have currently been trying to learn to run Zelda II: Link's Adventure and was watching a streamer and the community was more than willing to help give me some pointers. Here is the link to a very in depth guide on running both NES Zelda games. Be sure to give Simpoldood, PresJPolk, zzdazzlezz and Scorpion_max a watch if you're on and let them know I sent you.
http://redcandle.us/Main_Page
http://redcandle.us/Main_Page