A mile-high, glass pyramid, for the benefit of the rich snobs over on the mountain.
A scaled up T-38 powered by a pair of EJ-230s. (Personal jet.)
I'd donate half to Elon Musk's space effort, and try to see what could be done to get Bigelow in the mix.
After that I'd spend the rest of my disposable income trying to make the space colonies envisioned in the 70s a reality.