A warbird look alike would be pretty cool indeed. I've heard suggestions of a crop duster conversion, something
like a Pawnee or Thrush. I could see that also.
BTW I'm a big fan of the Douglass "Able Dog" I wish there were more models of it.
When I saw the movie Flight of the Intruder I thoght the "sandies" were the coolest airplane I had ever seen.