WOW, That Ark is HUGE! Me thinks it would dwarf B5. Have you seen any artwrok depicting "O'Neil" type space colonies, the design was the basis for B5.
BTW... I'd like you to look at smething for me but I'm not sure how to send you a compessed file, I could post alink to my "Drop Box" acount, a very hand and free service for file sharing. Might be about 22.5MB, and you'll need Orbiter 2010... ... ... he he he he ; )