I don't know anything about how to get a brand new ship in game. I am willing to learn, but I need to finish my giant Marshall Islands map first. If anybody wants this model, I have it in .3ds format. I also have the ability to convert from .skp (the Google Sketchup format) to .3ds. Google sketchup also has the following models available with varying degrees of quality. If you want any of them, I have them in .3ds format ready to go.
USS Arizona BB-39 (Good quality)
USS Oklahoma BB-37 (Good quality)
USS Maryland BB-46 (Good quality)
USS New Jersey BB-62 (Medium quality, good above the waterline)
IJN I-400 SS (Good quality)
IJN Fuso Class BB (Medium quality, good above the waterline)
IJN Yamato BB (Good Quality)
IJN Musahi BB (Excellent quality)
IJN Kongo BB (Medium quality, good above the waterline)
IJN Mogami CA (Medium quality, good above the waterline)
IJN Tone Class CA (OK Quality)
HMS Hood (Medium quality, good above the waterline)