That sounds like a good idea!
The only problem i can see with that is that, in our game, the trip was supposed to be Mercury -> Venus -> Earth -> Mars -> ... -> Neptune. So that imply that the typing section would be the first level, what could be undesirable to a new player i think. And the asteroids, being a simpler mechanic, would be the forfth level. So this could eventually comprimise the natural progression of the game.
Maybe, we'll have to redesign the lore, so that the planet the spaceship is visiting is not following the conventional solar system order? This meaning that a trip could be: Alien planet -> Mars first and then Alien planet -> Mercury?