Quick note - The Haguro was a Nachi class CA, not the nameship of a DD class. Just thought I’d point that out. :-)
As well, I definitely agree that the Shinano is not the best choice for a carrier mold, due to the OOB model and due to her relative obscurity in comparison to other IJN carriers. I would still choose the Shokaku class as being well-known amongst WWII PTO enthusiasts and military historians, as well as being typical of modern IJN carrier production (at this scale, she is somewhat representative of the Soryu, and the Unryu class, the latter of which was intended for mass production, with 17 planned, 6 launched, and 3 completed).
@ Deaths Head 420 - I assume you are referencing the I-19 and Kinai Maru due to their inclusion in Axis & Allies WaS. I-19 was a B1 class submarine, which was actually my own choice (I’d be willing to settle for a different B class variant though). The Kinai Maru is a possibility for a transport, although I’d still prefer a mass-produced Standard Merchant, although due to my inability to confirm the existance of the version in the profile I posted earlier, I’d now choose a Type 2A:
Type 2A Standard Merchant:
BTW - Off topic, but in response to an earlier poster discussing Soviet carriers, the Soviets did draft plans for two serious CV designs, and had several others that never left the drawing board (none of any design were actually laid down though). These two serious designs were Project 71 (a light carrier, intended to begin production earlier in the war) and Project 72 (a fleet carrier, intended to begin production later in the war). If an appropriate thread is opened by FMG, I’ll post some line drawings (profile and overhead).