What is the difference between the Dash9 and the AC4400 bodies? I have an idea to skin a dash9 into a AC4400 as long as its the same body type with little or no changes from the dash9 body. I already made one but not sure how prototypical it is. And as long as I can get permission from Frank to release the loco and JR to use the sound, there might be another loco out as soon as this evening. Arn works (BNSF 5600-5717), error free, and weathered.