The appropriateness of Perpetua would probably depend on the tone of the writing. When I used it, I (half playfully) thought the extra space made the words sort of resonate.
Not to be a wet blanket or anything, but does anyone think he should maybe take a year or two off and do something productive? I have done the whole younger than everyone else thing back in college, and it sucked royally. In my school, so many events revolve around drinking and bars, and the occasional person might treat you differently when they hear about your age.Additionally, you don't want the application process to be rushed, and you have some work yet to do. Not trying to be negative, i just think it is important that this be considered.