Boudacia,

This is the best response I've seen to your question is one I saw here on RCUniverse a while back.

"A Sig Four Star. All you have to do is pour some glue in the kit box, shake it up for a while, open the box again and a completed air frame will pop out."

Of course I'm kidding, but the Four Star kit is easy to build and you get a good flying airplane when you're finished. Better yet, if you build the 40 size, you can use the motor and electronics out of your trainer to fly it...

Good luck with whichever choice you make and welcome to the wonderfull world of kit building. We are a dying breed.

David