Ok i was planning on getting actual draganflyer replacement props which are all 4 for 20 bucks. The speedcontrolers they would be the things that turn a servo transmition into a electic motor speed transmition... so basicly they contol howmuch electricity goes to the motor. ok.... And as for stableness I dont need a solid rock I probly will fly it indoor more then out. So ill go with a cheap transmitter... Also being curious... You thing insake of money.. This wont be efficent but a 3 speed gear box instead of those vtail things... and i would servos to control what gear ratio its on. Ive done a bit with robots never plains... And i know i can have a gear box do that.. I dont care about stablity I can fly around. So all it has to do is fly(duh) and go forward backwards and turn. If I wanted to realy fly something serious I go flying myself.