1 - Use of prize money. I've got a spreadsheet going for materials costs, and of course I'll want fuel to tow this thing around to events and buy the propane to fire it up. $25K minus taxes will be about right to build a 2-octave version of my idea of a flaming trumpet organ. It will be expandable so that later i can add another octave(s) or a shift function that fires a larger (deeper sounding) horns instead of the base herald trumpet. It can be automated, so that a computer can control the notes via MIDI (for concerts or shows). I've been mulling this idea around for years, held back by the cost.
2 - Age eligibility for my original (but not "home") state of CA - i was born February 10th, 1978. i'm old school, yo.