Q. Would it be possible to economically move the fission component into a standardized nuclear reactor that could then generate electrical power?
IOW is there a "swords to plowshares" solution to the disposal of fission weapons or, once you've made one, are you stuck with a device that can only be used to blow things up?
Reason I ask is, I see Russia et al sitting on all these weapons which cost a great deal, are no doubt costly to maintain and of little or no benefit to anyone (well, other than as a threat). [I mean, it's almost like owning a fleet of BMWs but even less useful! ] If we could build a "reactor framework" into which we could move a single warhead's fuel and that fuel could generate electrical power until sufficiently diminished to be of little/no use as a weapon, then that would IMO be a very good thing. Countries like Russia who had a closet of nukes but no money could sell the nuclear fuel off and benefit, buyers could get electrical power cheaper(?), and the world would be better off. Everybody wins.
Or is making a nuclear weapon effectively an economic one-way street (i.e., you're stuck paying for it forever?