The hangar - if you have ever stood in the old CVS hangar: double it and a half and almost again acrossways. Maintenance areas front and back as well. It is massive.
And shore heads - the MBR's and integrated Waste Management System is up and running. So no 'shitting in a rag and dropping it in the basin'. Everything you don't want is ground up, smashed up, dried and pyrolised.