Naruto would probably be super excited about the Ironman concept. He'd be constantly thinking of ways to use Ironman's gadgets in his ninja world. Yugito might be more reserved but interested. She could help Naruto see how to adapt Ironman's ideas to fit the ninja culture better. For example, making the Ironman suit more stealthy like a ninja.
Tony Stark, a wealthy genius and playboy, was captured by terrorists while demonstrating a new weapon. Instead of building a weapon for them, he built a powered suit to escape. This was the first step in becoming Ironman. He then refined the suit and used it to fight crime and protect the world.
Sure. Ironman's kid in the comics is Morgan Stark. This character adds a new dimension to the story and explores the family aspect of Tony Stark's life.
Well, Ironman's death in the comics was a heroic act. He made a huge sacrifice to protect the world. His suit couldn't handle the immense power needed to stop the threat, and it ultimately cost him his life.