With the best engine in the world, it's going to be six months, or more, before you can be competitive. It's a long and steep learning curve. If the money is not a concern, get the blueprint, but if the money is a concern, spend some time racing and learning and making sure your daughter wants to stick with it. Make sure you want to stick with it.
For me, the learning curve was half the fun. Learn about jetting, (very important) learn about timing, learn about tires, just learn about what it takes to be a racer. A word of advice; it's nowhere near as easy as it looks. When you get that first, "first place trophy" you'll realize how much fun it was getting there.
