This adds a craftable, upgradeable, and custom longbow to the game.  It has daedric stats.  Crafting is in iron section.  Sorry that it isn't a higher difficulty to craft, but I felt that the bow needed to be in that same area.  The recipe is relatively difficult to meet, so that should even things out.  You will need some troll fat, lots of tundra cotton, firewood and leather strips.  Have fun and happy hunting.