So about those low lever tiers:
Pledge £5 or more:
Be an Elite supporter, and get a digital code when the game is released to apply a transferrable decal to your ship, unique to you.
Why would you want this if you don't have the actual game?
Pledge £10 or more:
Receive the digital newsletter and progress updates, plus the reward above.
This should be the £5 option imho, as you want ALL contributors to receive news on the project (to tell their friends etc).
Pledge £15 or more:
Reserve your Commander name in the game (first come, first served, except Jameson), plus all rewards above.
Again, same issue as the £5 tier currently, why would you want this IF you don't also have the game? And how does this differ exactly from the £1,500 tier reward? In other words much more clear wording is needed in many of the current options so people know exactly what they are getting.
Edit: ok i'm going to come up with an alternative tier list (some are fine as is, but there are too many 'odd' options currently) and post that back here a little later.