Also, don't over-power your Cub. It's best kept light, especially for a beginner. A 26 four stroke is a good engine on that plane. Many like a 40 four stroke, but unless you build heavy, it's more than you need. And building a Cub heavy is a sure way to keep it from flying like a Cub, and for a beginner, it will be harder. Note that the fuselage is very short compared to the wingspan, and the wing chord is small compared to the span. Put it up against your Kadet and you will see. Don't judge power for a plane by the wingspan.
You'll probably need some rudder on the turns, like the full scale does. Whereas the Kadet will turn quite well with just the ailerons.
Jim