You can also just grad a used G&G body or any other metal body where the trades are painted, not engraved. Then you just have to engrave, repaint, and you are good to go. That or do your own stencil on the side in full color. It is perhaps not the prettiest way to go, but you get metal body over a plastic. (or you can get a metal body with engraved trades, do the same thing by filling, and stencil/engrave, repaint).
Here are some for sale right now:
http://www.airsoftcanada.com/showthread.php?t=34640
http://www.airsoftcanada.com/showthread.php?t=34959
http://www.airsoftcanada.com/showthread.php?t=34353
http://www.airsoftcanada.com/showthread.php?t=32889 <- maybe still
I am sure more will pop up too, I just grabbed one a few weeks ago for $145, nothing a bit of cleaning and paint didn't fix.
-Daes