Try asking the builder, Huntington Ingalls:
https://www.huntingtoningalls.com/contact-us/Be sure to specify you want non-classified, general arrangement drawings for model-building purposes. There's no guarantee, of course.
You might also try to call the USCG's Pacific Northwest's public affairs office:
https://www.news.uscg.mil/Astoria/
Try asking the builder, Huntington Ingalls: https://www.huntingtoningalls.com/contact-us/
Be sure to specify you want non-classified, general arrangement drawings for model-building purposes. There's no guarantee, of course.
You might also try to call the USCG's Pacific Northwest's public affairs office: https://www.news.uscg.mil/Astoria/