Sig LT 40 kit or arf,any decent .40 or .46 2 stroke,doesnt have to have ball bearings,a basic computer 6 channel if you can afford it or a starter level four channel if you cant.Stay with the three or four standard brand names for the radio,preferably the brand most common in your club,or whatever your instructor is flying so that you can use a buddy cord if you or he/she wish.