Can we agree on the propulsion?
2x RR MT-30 Gas Turbine and 4x Diesel Electric backups?
2x Naval sized Nuclear Reactor? (yet to be determined)
Very Expensive Research on Nuclear Processed Beta-ray batteries?
In case you need to know what a beta-ray battery is, it's an experimental process to use nuclear fusioned material that has it's own energy and use it till it fades, takes around 25 years to fade, 12 and so years to fade to half the energy.
It's nice, but...creating enough material to fill a battery for a carrier might not be very economic or even possible. Probably better if we stick with the ensured working ways.