I know this has been said but its true.
SPAD is the cheapest way to go, a complete plane , excluding radio and gear these planes add's up to be no more that $20.
As for flying, they fly just great if not better than other cheap trainers and it really durable
try
Spadtothebone
I have more than 5 SPAD's and will never put them aside untill for some reason thay can not fly anymore.. unlike all mu balsa plane's