No, no.
You don't have to do a bombight! You can bomb with it anyway! As I see it, this will mainly be used as an AI aircraft. (And it will fill a BIG gap: we need a machine of this type for all early war Japanese Army campaigns!) Therefore the externals are the most important part. It should look good through the gunsight of a Tomahawk! That's the most important part!
It was just an argument against using the D3A FM.
Use the B5N FM. It will be all right!
You are so close to finishing this!
And I think that your new Ki-51 version is almost a dead ringer for the Ki-30:
As a Ki-51 the whole aircraft should be smaller, shorter, with a shorter canopy. But as a Mitsubishi Ki-30 "Ann", well,
it's almost a perfect stand-in!
Another thing, regarding the Ki-30: is it possible to turn the engine upside down, to get the air scoop on top? Or will it look crazy? (Because I guess that the exhausts will follow... Or?)