There was a sega master system game called "Golden axe warrior" which is a game that looks pretty close to zelda in many ways. I thought that it could be a good source for graphic and audio riping.

Maybe somebody might be interested in remaking this game with the ZC engine. Still there is a few complication because the world map is 15x15 and I think that the number of tiles on each screen is a bit smaller. Of course, the items are not exactly the same but most of them could be substituted.

Here are some screen shots from an emulator for those who never seen this game :