At one time, I was attempting to rebuild the entire Japanese Navy that served in WW2 in 1/700 scale waterline models. I was doing pretty good at finding models of each ship too. Most were made by Tamiya and Hasegawa. There might have been a couple of other manufacturer names too, although I think they might all be the same company now. I got all 12 Battleships, all but 1 carrier, all the Heavy Cruisers and most of the Light Cruisers and twenty-some Destroyers. I even had some submarines and auxiliary ships.
Then I got a book all about the Imperial Japanese Navy from 1889 - 1945. I made listings of all the different classes and models of ships that served from 1940-1945. That’s when I found out that Japan had about 160 different destroyers in service throughout the war. Not all at the same time of course. As some were lost in battles, others were built to replace them. Still, I realized I would not be able to get that many destroyer kits. I wasn’t even sure if all of them were even available. Shortly after I guess I just lost interest and gave up on that quest. Ended up selling most of the kits un-built. Still have the Battleships though.
knp7765, I have 140 1-700 scale waterline IJN ships from Tamiya, Fujimi, Hasegawa and Pit Road
Mine are 19 to 33 years old. Just like you I thought man, I can build the entire IJN of WWII in waterline.
Never got it done, to many ships to build. My entire collection of 1-700 scale ships is over 300 models and they sit in storage since my son born 19 years ago. Maybe willing to sell them if the price is right.
So now I am building all the WWII Navies in AA scale instead.
WARRIOR888