Guys i need a motor which gives me enough thrust to lift a plane weighing 2.1 kg (ready for fly weight) for a payload lifting compitation ..most important thing is motor should be light weight....suggest me some motors please..

Guys i have an JR XJ6 transmitter and unfortunately i have lost the receiver of it..so iam in search of this particular receiver called rg631b (discontinued by jr) or any good substitute receiver for it..if any one knows where can i buy it so plz help..