OK, let's hope this

thing doesn't log me off again.
"Conning tower" is not really the proper term, "island" would be better. The ship in question is ACV/CVE Charger in July of 1943, and the island on the Charger was rather small, only having three levels, the top one being the platform. Sides are pretty basic, albeit the port side (left for you landlubbers) did have some protrusions. There is one photo of this are I have been able to find, on Navsource's
CVE-30 Charger page in the special photos section titled "
The Men Part 2)." It's the fourth image from the top, captions, "The Flight Deck Gang."
That's a watertight door behind the sailors and you should probably represent it closed if it's during flight ops. The striped plate at the foot of the right most sailor is part of the barricade system that the Corsair is in the process of chewing through in the photo you posted. It wasn't part of the arresting system but instead was flipped up on the forward section of the ship to prevent the plane from striking other aircraft parked in front of it. Hit it wrong and you would wind up doing a head stand or flip, as your bird did.
I'm not sure how true to the picture you want to stay, but the markings on the fuselage should read 1-OF-12.
As to ship colors, Charger would have been painted in accordance with
Camouflage Measure 22, so all of the vertical surfaces you have to worry about were in Haze Gray. Horizontal metal surfaces would have been Deck Blue, and the wood stained #21 Flight Deck Stain, which was similar in appearance to 5-O Ocean Gray. Since Charger was based out of Chesapeake and used pretty much for flight training her staining would have been fairly fresh most of the time and less of the wood color showing through.
None of these colors have an exact FS equivilent as they pre-date the FS system. the Haze Gray mentioned above was an earlier formula than used now, with a blue tone to it, so most of the Haze Grays you see now aren't quite correct for it. White Ensign carries colors that are direct matches though.
I started out as an airplane modeler, but I'm a bit of a carrier nut now, so feel free to ask me any questions you might have.