I really hope the shaft looks like the one in your mock-up Bingo, good job.
Btw I posted a (really bad looking) mock-up of the rebels preparing to attack a star destroyer with their canon (ala. ROTS). There's only one rebel in the pic and I really could have added more. I was wondering if someone could create a better looking mock-up. Would shots like that be workable anyway? I certainly hope so.