ORIGINAL: jjflash
I think that plane is same as a BeginAir. The parts you need are only $6.30 and if you need new landing gear its $6.40. Heres a link, click on beginair then spare parts.
http://www.parkflyers.com/
The BeginAir is the the Art-Tech Wing Dragon Sportster which is the Wing Dragon with Ailerons. Parkflyers.com has exclusive rights to distribute the Art-Tech Wing Dragon Sportster in the US under the name BeginAir. BeginAir parts can be used in the Wing Dragon with the exception of the wing which has ailerons. There are also plenty of on-line hobby stores that sell the Wing Dragon along with replacement parts which, as pointed out above, are fairly cheap. I've had a BeginAir for about a year now and it's a good 4 channel trainer so I'd assume the Wing Dragon is a good 3 channel trainer and given that repairing the plane is cheap it doesn't seem you'll need a new plane. Just my 0.02 worth...