Currently doing a Google search for JGSDF AH-64Ds and no joy so far. Does anyone know if those would carry the same green, tan and black camouflage scheme as JGSDF AH-1s and UH-60s? I think the Hasegawa kit with those markings denotes such a scheme but I don't know if that was conjecture.
Here are some images I've found thus far:
http://www.hlj.com/product/HSG09452
http://www.helikitnews.com/issues/hkn168.htm