MJY65
just the catapult section large enough to sit under the plane.
If you just mean parked over the cat section at the bow, then hooyaw's photos are a good guide. But, if being entirely accurate, a/c on the bow are parked TOW (tail over water) to maximize room for parking. Which suggests some of the catwalk being needful.
If you mean hooked up to the shuttle, that's a bit different.
I want to remember that there are some kits with the JBD (jet blast deflectors) which would set the scene.
Now, locked into the shuttle, you need to do some surgery on the nose gear of the F-18. The lock bar and drag link compresses the front oleo down.
But, if you are modeling a Ready Five fighter, you can have the canopy up, ladder out, and full ordnance load aboard with all the RBF flags pulled.
For a Ready 15 (or 30), it can still be loaded, but it needs almost all the RBF in place, and a chain or two depending on the sea state and Plane Captain. Cockpit is generally unoccuplied in that case, too. The JBD are lowered, too, since they only take about one minute to raise up. FOD covers may or may not be in place (and posibly intakes only).
The "Ready nn" formulation means how long, in minutes, from command to launch. Ready 5 may not have the engines spooled up, but will be ready to.
Ready 15 is pretty much parked, and is decidedly on standby.
Now, a Ready 15 is often set up to run buddy tanker mission for when an Operation is on. They will set up on the midships cat so as to allow parking on the bow, leaving the landing area only "fouled" by the ready a/c, which an be towed out of the way if not needed.
Everyone hates having a Ready 30 set up as it fouls the deck in two directions, especially as those are usually "four ship" flights.