List looks good. A few questions: you selected 270k vs 270R resistor. Do you really want to buy 100 of the MOSFETs? Thats $55 worth. It appears you have selected a dozen of the 1000uF Oscon output caps. That’s enough for 6 pocket amps. You only need a pair. Maybe double them up for 2000uF if wanting to drive lower impedance headphones.