Zvi and the Cato institute both have lengthy pieces about why the Jones act is bad [1] [2], and whether or not you believe that has entrenched our shipbuilders, the US essentially manufactures no ships compared to South Korea and China.
This naval news post says there are $5 billion in modernization costs for the shipyard needed for this project so it seems like we're still years away from a started (much less completed) project.
[1] Nov 2024 https://thezvi.substack.com/p/repeal-the-jones-act-of-1920
[2] June 2018 https://www.cato.org/publications/policy-analysis/jones-act-...