Battery door mechanism design for Apple iPod nano battery pack

Need CAD models (STEP file, or ProE .PRT files) for TWO design concepts with below assembly - As depicted below, the door should unlock when a user presses a button, which causes the door to pop open in the opposite direction. Carefully note the mechanism requirement: A downward force on the button (normal to the door) should activate the mechanism. The button must be contained within the door. Pl include: <1> Ideation: Illustrate/list different concepts considered as solutions for this design challenge <2> The final design should be presented as “ready for initial production”. this includes prints with tolerances and material details called out. The 2nd design choice can be presented as a concept with some initial design work presented. <3> Any relevant analysis used to validate your design (e.g. tolerance stack ups, free body diagrams, Risk Analysis, other tools you are familiar using) will be a plus. <4> Provide manufacturing process and assembly assumptions. Provide material selection