If you feel like you need to, or want to just feel like you're supporting the development early, get yourself a pledge. Don't get the largest thing you can. Start small, I'd personally recommend one of the starter packages, the ones with Squadron 42. Play the alpha, get a feel for the game and decide on whether you want to spend more or stick to your starter. An Aurora or Mustang is fine for a starting ship, so no worries.
If all that doesn't sound like something you'd do, wait for 3.0 and reassess.