Better yet get a huge brick, paint it green and brown put some cheesy stickers on it, add some wings that only work when right side up, put some very small control surfaces on there and power it with a O.S. .40LA. It should fly just like a warbird.

Needless to say, Im not a big fan of warbirds.
HOWEVER, if you just got to have one go with the Mustang b/c from what I hear its the easier one to sluggishly pull through the air.