This is an edit of a texture originally uploaded by Dave Stewart (see readme). I converted it to DXT5-dds as best I know how and upgraded it for FSX, and edited the texture set for accuracy and fixed up a few things. I hope you don't mind I'm uploading this Dave, I tried to contact you for permission.
It requires the Bicentennial version of the US-2B by A.F. Scrub and Tom Lebel of the Milton Shupe US-2A airplane. It will not work with the US-2A because of a texture mapping issue on the right nacelle on the 2A model. The US-2B model can be found here
With these textures, the US-2B model works fine in FSX:SE, and I assume FSX and whatever P3D versions accept FS2004 aircraft. When I open the model in ModelconverterX I get a bunch of SCASM errors, but I haven't seen any issues using it in Steam.