FB-35? Sounds like it could be built fairly easily by combining the CV wings & tails with the land-based structure. Then again, there would need to be a certain amount of structural stiffening and beefier landing gear to support the increased gross weight. Could probably be achieved by milling less material off certain structural members, or substituting stronger alloys.
I think the Aussies evaluated this option for an F/A-18 replacement. Their recent Super Hornet buy would seemingly put F-35 on the backburner.