well thank you for your advice, im still flying around in my nutshell as my mainship, feeding of wracks :s
But i can tell you, that i already planned in individuall customization, the red cube-like module can be expanded and replaces with anything you need :) may it be cargo(actually i would build a completely different ship for cargo-related dutys), or more energy capacity combined with the needed crewquarters^^
at the moment the red cube is only made of rock, no more no less :P