Wow, much different. Both are really cool.

It's hollow on the inside and with access from bottom, where I can add whatever modules or cargo i need :)

Since then I have modified the design severely:
http://node2.projectplanet.cn/@steamcommunity.com/sharedfiles/filedetails/?id=851087220

It has no cargo hold space. However, if you are a slaver, there is plenty of loot... 399 crew quarters.