RE: What second heli
Take a look at the Black Hawk EP over at KA-Planes. 299.99 . You will find it to be much more stable than King 2 or the Belt CP. Save up a little more cash for a 450 size Heli and you wont be disapointed. A small fixed pitch heli is going to be harder to fly than a collective pitch 450.
Good Luck
and Good Flying