Actually I think the only tanks the Japanese produced in any amounts were the Type 95 light and Type 97 medium and the Type 89 to lesser numbers. Most of the Finemolds stuff is different versions of the 95 and 97 plus a number of 'paper panzers' that were either never produced or experimental designs where only one or two ended up built. I still love the stuff since it's so different from the US, UK, USSR, German stuff you normally see.
You can find the Finemolds stuff on Ebay for good prices sometimes as well as Hobby Link Japan is pretty good. Some people like Sprue Brothers who are normally one of the cheaper places to order though have really high prices on Finemolds- no idea why.