Mine is in excellent condition, like new, with zero marks in any books! Feel free to inspect the kit and see for yourself before buying. I paid $325.54 (after tax), so you save $125! When your child is done with the test, you can resell it on Craigslist.
I have multiple kids who have passed the 1st round Hunter test and made it to the 2nd round. I can give you an idea of what to expect during the whole process having gone though it several times.
If you can read this, it's still available! I will take down this post immediately after somebody picks it up.