RE: Need your advice please.
If you can fly a 3-channel, then you can fly a 4-channel too. The only difference with a 4-channel, is that give a little right stick in the direction you want until the plane banks as far as you want, then release it and give it some up elevator. Try it on a simulator if you want, it'll give you a better idea of my discription. With a 3-channel, you give it right stick until it's turned as far as you want it to turn. Realease the right stick, and it'll level its self and fly straight.
Also, have you considered a glow-powered machine? I know that everybody's into electric these days, and that's what I was going to start with. But the electrics cost as much, maybe more, to set up as a .40 trainer, so I opted for glow instead. Needless to say, I was not disappointed. The sound of that engine just adds to the flying experience! Also, a glow-powered machine can be just as quiet as most electrics, as long as you use the muffler. Let us know what you get!
NorfolkSouthern