Sounds interesting. Id be happy to join in on the fun depending on when this will be played. Theres a fan made thing that used the d20 system for legend of zelda. It was really well done. I suggest you look for that and see if ya can find it. Otherwise, i suggest you do a Pathfinder game since it can be easily adapted to it and with the race creator, you can easily create the various Hyrule races.