I *have* finished the Japanese Tone and Mogami classes and have barely gotten 1 and 2 of each on the same page for 1:1200 models. 122K
First I test-build the PNG/JPG turrets for them, South Dakota, and Astoria/Wichita at much larger scale to make sure they assemble correctly.
Then the hulls.
Since I am doing this for the first time with graphic (not CAD) programs, I have (for example) left the hull sterns with marks at the bottom for the test-builds, to see by assembling exactly how long they should be.