Thank you so much

@Spark7979 The cockpit is at the very front. One thing you have to consider is that their legs and neck make up a bulk of their total height, so when they sit/lay down, their legs fold up at their body, like a bird in flight, so that pretty much removes them from the effective height (or in this case length). The cockpit is also built in a way that the blade that covers the front from flying debris, is also placed in such a way to perfectly cover the only blind spot in their vision (more about that in the Spore fandom page).

where do they sit in the craft if they're five metres tall?

Incredible craft, amazing work!