It may looklike all i've done is some colouring in. But the Cockpit and Engines are now hollowed, split into castable components and are shown here with some colours just to highlight the details a little better.
If you look at the join lines for the cockpit you'll see locating lugs allowing magnets to be used to 'snap' the components together when assembling. I think this will still be manufactured as a solid resin piece for simplicity but the hollow 2mm shell means the print cost is dramatically reduced. I've also added an Iris valve to back of the cockpit for those that want to be able to model this with a detached cockpit at some point.
I think I'm trying to put off having to remodel the whole hull ... :-(