Scratch Building Modern USN Carrier Deck

It wouldn't hurt to look for some of the DML 144 scale flight deck dioramas like the one with the F-14 on the catapult and scale them up or down depending on what you want other than that your looking at Research just as jdeltaarrow mentioned

Research, research, research. Get ahold of every picture you can find, find out the proper measurements see what you can find in pe and aftermarket goodies. Buy lots of plastistruct and learn how do do resein casting.