I have a Greate Planes Venus (F3A plane) and the weight is 2.7 kilogram and wingspan on 1.4 meter. I have a Plettenberg Orbit 25-16 and an Aeronaut 15x10 propeller. My battery is PolyQuest 5 cells (18.5V) and 4000 mAh 12C. 52 A and 920 W on ground. It gives me unlimited vertical performance on 75 % throttle. This is a F3A trainer and is flying great. If you have flying a 40- size trainer you will be able to fly this. It is little faster in the landing compare to a 40- size trainer otherwise is does not have any bad habits.
If you have fly an EasyStar it will be a big step to get a 40-size pattern plane, maybe to big. I will also recommend a GWS Formosa. It is flying great and are easy to repair if you will do some mistake.
/Kristian