Kyosho makes perhaps the best looking/ most scale accurate .40 size warbird ARFs, and they make a retract ready Zero. By all accounts I have read, the Kyosho ARFS are relatively light and easy to fly.

An alternative, is the funscale .40 sized Zero ARF, which is not retract ready, made by a company called SeaGull. If retracts are not important to you on your first warbird, this may be the best choice, as it would be the easiest to fly.

In my opinion tho, the best all around .40 size, retact ready, 1st warbird ARF is the Great Planes AT6. At about $170, it is a great value for an easy to fly, acrobatics capable AND scale flight capable, rugged warbird ARF. AND, you could always transform it into a 'Hollywood Zero' by recovering it and adding a Zero canopy. For those that don't know, a Hollywood Zero is an AT-6 whch has been slightly modified and repainted so that it closely resembles a Zero. These are the aircraft that are seen in Tora Tora Tora, Baa Baa Black Sheep, Midway, and other movies/ TV shows.