I put a Saito 65 in my UCANDO 46. I added nose weight, put in a bigger tank, used a bigger battery for needed nose weight, did not reinforce anything and did not add wires to the tail. Used a Hitec 645 on rudder and the standard JR digitals that came with the 8103 transmitter package. I am using a 12.something X 3.something prop and the plane is alot of fun. Plenty of pull and power for most anything. Need more elevator throw for more serious 3D. Have about ten flights on it. No problems so far except hard starting inverted Saito so I just flip the plane upside down to start.
This is a fun plane!!!!!!!!!!!!!!!!!