Wonder Hobbies uses the the same ads as Nitro.
http://www.nitroplanes.com/superchipmunks.html
I didn't pay that close of attention to your plane being 57" span, where my Nitro is 63" and a glass fuselage for the same price.
The quality of the Chipmunk ARF's are a good value for the money. I would suggest going to the 63" and glass for the same money. I did have to bend the gear forward about an 1" to prevent nose overs.