If you want to do this then start skydiving now, move on to skydiving with a wingsuit, then start BASE jumping, then start wingsuit BASE jumping with tons of room for error, then start removing that room for error.
This is something you have to work hard to do while spending a ton of cash on travel/gear, and having balls of steel. If you're interested, then get the ball rolling soon... like get there before you have kids soon.
Something I find similar in lunacy is the Isle of Man TT. Superbikes at 200mph on country roads and the top prize is barely enough to cover expenses, let alone your bikes.
Trailer for a VERY good film that's worth finding an HD copy of,
http://www.youtube.com/watch?v=QldZiR9eQ_0