I can't help you much, 'cause i don't know how to do it :D. But i have a few suggestions)
Maybe make 1 more hangar below. Make lift move like top/middle/lower deck. And make more usable rooms(?).
Make carrier static object? Cause it ain't moving anyway, but because of minor dislocation of the carrier, some objects inside dislocate too (out of the carrier for example, if they're on the edge of the deck.