OK how about the Rutan Proteus as a spy plane. I was looking for some pics of the Proteus and came across a web sit showing a image of one in dark grey upper and black lower and thought that's cool, so here is my take on this idea, The site is on using Proteus as an atmospheric satellite
of sorts not as a spy plane but I thought what the heck it looks cool so here we go.......Rich
Almost forgot the link to the site
http://www.ausairpower.net/AC-0999.html