All this talk of "What If" reminded me of an article I came across when I was doing my P -38.
http://p38assn.org/aboutp38.htm
Lockheed proposed a carrier-based "Model 822" version of the Lightning for the United States Navy. The Model 822 would have featured folding wings, an arresting hook, and stronger undercarriage for carrier operations. The Navy wasn't interested, as they regarded the Lightning as too big for carrier operations and didn't like liquid-cooled engines anyway, and the Model 822 never went beyond the paper stage.However, the Navy did operate four land-based F-5Bs in North Africa, with these aircraft inherited from the USAAF and redesignated "FO-1."
I'd love to try to build it. Darn, Now I'm thinking about it again LOL If I could confiscate the wing hinges and locks from another kit (Maybe the Corsair) Hmm, This is something to think about, How about a P 38 Group Build. The first YP 38 flew on Sep 16, 1940. I wouldn't even start that GB until Sept 16, 2016
Here's What the Navy version would have looked like.