4ch + Begginer = Trouble, money, time, anger, and so on.

Get a 3 ch to start with i am preety sure you wont get board, and then when you can fly that ethier sell it and get a 4ch or just add to the collection and get a 4ch...

I personaly dont use a instructer i am good with airplanes and dont have the time for one. Well i can also add the nearest trainer is at least 2hours away with no traffic.

All in all go with a 3ch..