Searching for parts for my broken screen

My wife had recently dropped her old IPhone 1st Gen. for the 40th time. After completing her missing she turned to me for help fixing her shattered screen. Being that I love to tear down devices I agreed to fix it. After realizing that glue and tape didnt help I started to search for a replacement screen. You are my first to go to, I love to use your app on my IPad and figured I would give you guys something else to do. Could you please direct me in the safest way to my goal besides using paper clips and bubble gum to fix the screen. Thank you and forgive my grammer.