I posted a question about adding ships months ago, but you took it further and did it. I did some research when I posted so I hope this helps you with your quest for more "targets". Oh yah and um I am not trying to hijack your thread.
Following ships are needed
United States
1. US light Crusier Pensacola class +1 Salt Lake City
2. BB Nevada and Pennsylvania
3. BB New York and BB Texas
4. BB Wyoming and Arkansas
5. BB South Dakota Class +3 Indiana,Massachusetts and Alabama
6. CVL Independece Class +8
7. CV Essex Class + ?
8. CV Ranger
9. CV Langley
10. CV Yorktown
11. CV Lexington +1 Saratoga
12. CV Wasp is the current carrier
Japanese
1. Cruiser Tone +1, Chikuma
2. Cruiser Nagara +5, Abukawa,Isuzu,Kinui,Natori,Yuri
3. Cruiser Asama +1, Tokiwa
4. Following are carriers
Akagi
Kaga
Ryujo
Kaiyo
Shinyao
Shinano