Interesting, but despite advice from any number of well informed sources, I'd be very surprised if the politicians give nuclear powered subs the green light.
I saw what you did there - nice play on words.
FWIW a cheaper way to go for longer endurance is
AIP on a diesel submarine.
That tech is a few decades old, and is affordable. (Swedish, German, and Russian subs have all successfully demonstrated that kit)
Put a nuke tip on a Tomahawk, or similar submarine munition, and Bob's your uncle if what your Navy wants is a sub carried means to deliver a bucket of sunshine somewhere.