Incline DB Presses followed by more Incline DB presses for the upper chest. Reverse pec dec and single arm bent DB raises for the rear delts. Although with both exercises you really need someone with a trained eye to be sure you are set up correctly and doing them in a way that isolates the posterior delt. The simplest advice I can give is to use light weight and lead with the pinky finger. For the long head I would do seated overhead DB extensions in the 8-12 rep range.