Iron Eagle, the SE is a full on aerobatic model. As such you really don't want to alter the wing incidence setup from the 0-0-0 setup it has already. At least you don't want to do this if you wish to retain the traits that it was designed to have.

As for the fairing go ahead if you're after it for looks. But really drag with such a model isn't a big deal. The typical size of the engine for aerobatics makes any such drag a total non issue. And if you're after speed then this is not the model you should be building since the surfaces are wide enough that if you try to go that fast it's going to flutter and destroy itself.