This is the good stuff Brother! Bottle that up and keep it in your mind and heart forever. One day, likely when she's doing the teenage terribleness, you'll need to pull these memories out and savor them a bit.
My daughter was just a bit older than yours when she took the notion to build a bow with me. It's still incomplete, and honestly it's pretty poorly made and has only ever shot a couple dozen arrows. But I wouldn't trade that chunk of wood or the time I spent with her building it for all of the best bows ever posted on this site. She turns 25 in a couple days...
OneBow